Liang, Ren-Xiao; Wang, Ke; Song, Ling-Jie; Sheng, Wei-Jian; Jia, Yi-Xia published the article 《Synthesis of tetracyclic indolin-3-ones through Pd-catalyzed intramolecular deacetylative dearomatization of 3-acetoxy-indoles》. Keywords: tetracyclic indolinone preparation; acetoxy indole intramol deacetylative dearomatization palladium catalyst.They researched 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 ).Category: esters-buliding-blocks. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:415918-91-1) here.
An efficient palladium-catalyzed intramol. deacetylative dearomatization reaction of 3-acetoxyindoles I (R1 = H, 6-Me, 5-OMe, etc.; R2 = H, 5-F, 4-Cl, etc.; X = I, Br) has been developed. A range of tetracyclic indolin-3-ones II (R1 = H, 3-Me, 2-Br, etc.; R2 = H, 8-OMe, 9-Cl, etc.) bearing C2-quaternary stereocenters are achieved in good yields, showing a wide substrate scope for this reaction. A preliminary enantioselective reaction is established to furnish the product in 63% ee by using (R,R,R)-phosphoramide-PE III as a chiral ligand.
The article 《Synthesis of tetracyclic indolin-3-ones through Pd-catalyzed intramolecular deacetylative dearomatization of 3-acetoxy-indoles》 also mentions many details about this compound(415918-91-1)Category: esters-buliding-blocks, you can pay attention to it, because details determine success or failure
Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics