Tag: M.W=500-600

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine, is researched, Molecular C36H30NO2P, CAS is 415918-91-1, about Synthesis of Silylated Cyclobutanone and Cyclobutene Derivatives Involving 1,4-Addition of Zinc-Based Silicon Nucleophiles.Name: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine.

A copper-catalyzed conjugate silylation of various cyclobutenone derivatives with Me2PhSiZnCl · 2LiCl or (Me2PhSi)2Zn · xLiCl (x≤4) to generate β-silylated cyclobutanones is reported. Trapping the intermediate enolate with ClP(O)(OPh)2 affords silylated enol phosphates that can be further engaged in Kumada cross-coupling reactions to yield silylated cyclobutene derivatives

In addition to the literature in the link below, there is a lot of literature about this compound((11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine)Name: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine, illustrating the importance and wide applicability of this compound(415918-91-1).

Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Reference of (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine, is researched, Molecular C36H30NO2P, CAS is 415918-91-1, about Toward general access to the Aspidosperma-type terpenoid indole alkaloids: synthesis of the key 3,3-disubstituted piperidones through enantioselective intramolecular Heck-type reaction of chloroformamides. Author is Yasui, Yoshizumi; Takeda, Hiroshi; Takemoto, Yoshiji.

An enantioselective intramol. Heck-type reaction of chloroformamides has been developed for the synthesis of 3,3-disubstituted piperidones. The desired piperidone I was formed in the presence of a palladium catalyst, an optically active phosphoramidite ligand, K3PO4 and Ag3PO4. The obtained piperidone was converted to epieburnamonine II.

In addition to the literature in the link below, there is a lot of literature about this compound((11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine)Reference of (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine, illustrating the importance and wide applicability of this compound(415918-91-1).

Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

HPLC of Formula: 415918-91-1. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine, is researched, Molecular C36H30NO2P, CAS is 415918-91-1, about Synthesis of optically active allylamines by Ir catalyst. Author is Umeda, Rui; Nishiyama, Yutaka.

A review on synthesis of optically active branched allylamines by regioselective and enantioselective allylic amination of allyl carbonates with amines, especially, aromatic amines, in the presence of [Ir(cod)Cl]2 (cod = 1,5-cyclooctadiene) and chiral phosphoramidite (I), synthesis of optically active primary allylamines from allyl carbonates and excess NH3 in the presence of (II), and anal. of the reaction mechanism via Ir-π-allyl complex intermediates.

In addition to the literature in the link below, there is a lot of literature about this compound((11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine)HPLC of Formula: 415918-91-1, illustrating the importance and wide applicability of this compound(415918-91-1).

Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called A convenient catalytic asymmetric conjugate addition reaction to enones using alkylzirconium reagents, published in 2013-10-01, which mentions a compound: 415918-91-1, Name is (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine, Molecular C36H30NO2P, Recommanded Product: 415918-91-1.

Alkylzirconium reagents undergo highly enantioselective copper-catalyzed 1,4-addition reaction to cyclic enones. These reactions use alkylmetal species generated in situ from alkenes and the Schwartz reagent, and do not require premade organometallic reagents. The reactions have been performed on practical synthetic scales (2.5 mmol) and a scale-up to 10 mmol is demonstrated. The reactions proceed at room temperature, in a variety of solvents, and tolerate many functional groups.

There are many compounds similar to this compound(415918-91-1)Recommanded Product: 415918-91-1. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Reference of (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine, is researched, Molecular C36H30NO2P, CAS is 415918-91-1, about Enantioselective iridium catalyzed α-alkylation of azlactones by a tandem asymmetric allylic alkylation/aza-Cope rearrangement. Author is Bai, Xue-Dan; Zhang, Qing-Feng; He, Ying.

The development of an iridium catalyzed enantioselective α-alkylation of azlactones was described. The reaction provided rapid access to a wide range of enantio-enriched quaternary carbon center allylated 2,4-diaryloxazol-5(2H)-ones in excellent yields with high enantioselectivities. The transformation was achieved through a tandem allylic alkylation/aza-Cope rearrangement, affording the desired products under mild conditions. Ultimately, the resulting products could be readily converted into diverse enantio-enriched derivatives which highlight the importance of the methodol.

There are many compounds similar to this compound(415918-91-1)Reference of (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine( cas:415918-91-1 ) is researched.Quality Control of (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine.Graening, Timm; Hartwig, John F. published the article 《Iridium-Catalyzed Regio- and Enantioselective Allylation of Ketone Enolates》 about this compound( cas:415918-91-1 ) in Journal of the American Chemical Society. Keywords: ketone chemoselective regioselective enantioselective preparation; chemoselective regioselective enantioselective substitution allylic carbonate silyl enol ether; stereoselective substitution allylic carbonate iridium phosphoramidite metallocyclic catalyst; cesium zinc fluoride catalyst stereoselective silyl enol ether allylation; formation iridium phosphoramidite metallocycle enantioselective substitution allylic carbonate enolate; regioselective enantioselective ketone enolate allylation allylic carbonate iridium phosphoramidite. Let’s learn more about this compound (cas:415918-91-1).

Regio- and enantioselective α-allylation of Me ketone silyl enol ethers RC(OSiMe3):CH2 (R = Ph, 2-MeOC6H4, Me2CH, PhCH2CH2) with unsym. allylic carbonates (E)-R1CH:CHCH2OC(:O)OCMe3 [R1 = 4-MeOC6H4, 4-F3CC6H4, 2-furyl, Me2CH, EtCH2, (E)-MeCH:CH] in the presence of iridium metallocycles derived from bis[(1,5-cyclooctadiene)iridium(I) chloride] and nonracemic phosphoramidites such as I (or its enantiomer), cesium fluoride, and zinc fluoride yields nonracemic branched ketones RCOCH2CHR1CH:CH2 [R = Ph, 2-MeOC6H4, Me2CH, PhCH2CH2; R1 = 4-MeOC6H4, 4-F3CC6H4, 2-furyl, Me2CH, EtCH2, (E)-MeCH:CH] in 46-94% yields, 85:15-99:1 regioselectivities, and in 91-96% ee. CsF and ZnF2 are both necessary for the allylation reactions; no reaction occurs in the absence of cesium fluoride while reaction with decreased regio- and chemoselectivity occurs in the absence of zinc fluoride. 31P NMR of iridium complexes of I and bis[(1,5-cyclooctadiene)iridium(I) chloride] indicate the presence of a (cyclooctadiene)(phosphoramidite)iridium chloride and of a metallocycle derived from a (cyclooctadiene)iridium bis(phosphoramidite) complex.

There are many compounds similar to this compound(415918-91-1)Quality Control of (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Wu, Zijun; Wang, Jian researched the compound: (11bR)-2,6-Bis(3,5-dimethylphenyl)-4-hydroxydinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepine 4-oxide( cas:861909-53-7 ).Name: (11bR)-2,6-Bis(3,5-dimethylphenyl)-4-hydroxydinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepine 4-oxide.They published the article 《Enantioselective Medium-Ring Lactone Synthesis through an NHC-Catalyzed Intramolecular Desymmetrization of Prochiral 1,3-Diols》 about this compound( cas:861909-53-7 ) in ACS Catalysis. Keywords: enantioselective cyclization intramol desymmetrization prochiral diol heterocyclic carbene catalyst; lactone preparation. We’ll tell you more about this compound (cas:861909-53-7).

A highly enantioselective intramol. annulation reaction of 1,3-diols catalyzed by a triazolium N-heterocyclic carbene (NHC) precatalyst is disclosed, affording the corresponding medium-sized lactones in moderate to good yields with high enantioselectivities. It is worth noting that this compatible catalytic system was successfully applied to assemble a broad range of chiral medium-sized lactones, including ones with eight-, nine-, ten-, eleven-, and twelve-membered rings.

There are many compounds similar to this compound(861909-53-7)Name: (11bR)-2,6-Bis(3,5-dimethylphenyl)-4-hydroxydinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepine 4-oxide. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Bos, Pieter H.; Rudolph, Alena; Perez, Manuel; Fananas-Mastral, Martin; Harutyunyan, Syuzanna R.; Feringa, Ben L. published an article about the compound: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine( cas:415918-91-1,SMILESS:C[C@@H](N(P1OC2=CC=C3C=CC=CC3=C2C4=C5C=CC=CC5=CC=C4O1)[C@@H](C6=CC=CC=C6)C)C7=CC=CC=C7 ).COA of Formula: C36H30NO2P. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:415918-91-1) through the article.

A highly efficient method is reported for the asym. ring opening of oxabicyclic alkenes with organolithium reagents. Using a copper/chiral phosphoramidite complex together with a Lewis acid (BF3·OEt2), full selectivity for the anti isomer and excellent enantioselectivities were obtained for the ring opened products.

There are many compounds similar to this compound(415918-91-1)COA of Formula: C36H30NO2P. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Related Products of 415918-91-1. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine, is researched, Molecular C36H30NO2P, CAS is 415918-91-1, about Palladium-Catalyzed Asymmetric [3+2] Cycloaddition of Trimethylenemethane with Imines. Author is Trost, Barry M.; Silverman, Steven M.; Stambuli, James P..

The transition metal-catalyzed trimethylenemethane [3+2] cycloaddition provides a direct route to functionalized heterocycles. Herein, the authors describe a catalytic, asym. protocol for the reaction between 3-acetoxy-2-trimethylsilylmethyl-1-propene and various imines. The corresponding pyrrolidines were obtained in excellent yields and enantioselectivities making use of the novel phosphoramidite I and Pd(dba)2, e.g. 93 % (+)-tert-Bu (R)-2-(4-methoxyphenyl)-4-methylenepyrrolidine-1-carboxylate from CH2:CH(CH2TMS)CH2OAc and 4-MeOC6H4CH:NBoc.

There are many compounds similar to this compound(415918-91-1)Related Products of 415918-91-1. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine, is researched, Molecular C36H30NO2P, CAS is 415918-91-1, about Temperature-Dependent Interconversion of Phosphoramidite-Cu Complexes Detected by Combined Diffusion Studies, 31P NMR, and Low-Temperature NMR Spectroscopy.Reference of (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine.

For copper-catalyzed enantioselective conjugate additions, knowledge about the precatalytic and catalytic complexes has not yet been sufficiently developed to understand the strong influence of different temperatures on these famous reactions. Therefore, NMR experiments with four Cu(I) salts and two phosphoramidite ligands (I and II) have been performed to elucidate the temperature dependence and the low-temperature structures of these copper complexes. The existence of the precatalytic binuclear complex with a mixed trigonal/tetrahedral coordination on copper is for the first time proven with direct NMR spectroscopic methods. Below 200 K, intermol. interactions between free ligands and [Cu2X2L3] complexes induce binuclear [Cu2X2L4] complexes similar to the crystal structures. By combining diffusion experiments and 31P integrals at different temperatures, it is for the first time possible to follow the formation of stoichiometrically different complexes, even under exptl. conditions in which the 31P signals of the complexes are spectroscopically not resolved due to exchange processes. This allows a first correlation between the complex species observed and the synthetic conditions reported. Furthermore, different preferences to build homo- or heterochiral complexes are detected for binaphthol and biphenol phosphoramidite complexes.

There are many compounds similar to this compound(415918-91-1)Reference of (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics