In 2019,Organic Letters included an article by Shao, You-Dong; Dong, Meng-Meng; Wang, You-An; Cheng, Pei-Ming; Wang, Tao; Cheng, Dao-Juan. HPLC of Formula: 4949-44-4. The article was titled 《Organocatalytic Atroposelective Friedlander Quinoline Heteroannulation》. The information in the text is summarized as follows:
An atroposelective Friedlaender heteroannulation reaction of 2-aminoaryl ketones with α-methylene carbonyl derivatives was developed for the first time with chiral phosphoric acid as an efficient organocatalyst. The desired enantioenriched axially chiral polysubstituted 4-arylquinoline architectures were prepared with good to high yields and enantioselectivities (up to 94% yield and up to 97% ee). Furthermore, the products can be readily derivatized to afford an array of new quinoline-containing heteroatropisomers, which hold great potential in asym. catalysis and drug discovery. In the experimental materials used by the author, we found Ethyl 3-oxopentanoate(cas: 4949-44-4HPLC of Formula: 4949-44-4)
Ethyl 3-oxopentanoate(cas: 4949-44-4) belongs to ketone compounds. Ketones are highly reactive, although less so than aldehydes, to which they are closely related. Much of their chemical activity results from the nature of the carbonyl group. Ketones readily undergo a wide variety of chemical reactions.HPLC of Formula: 4949-44-4
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