On July 20, 2007, Hartikka, Antti; Arvidsson, Per I. published an article.Synthetic Route of 79815-20-6 The title of the article was Tetrazolic Acid Functionalized Dihydroindol: Rational Design of a Highly Selective Cyclopropanation Organocatalyst. And the article contained the following:
An improved catalyst (S)-(-)-indolin-2-yl-1H-tetrazole (I) for the enantioselective organocatalyzed cyclopropanation of α,β-unsaturated aldehydes with sulfur ylides has been reported. The new organocatalyst readily facilitates the enantioselective organocatalytic cyclopropanation, providing cyclized products, e.g., II, in excellent diastereoselectivities ranging from 96% to 98% along with enantioselectivities exceeding 99% enantiomeric excess for all reacted α,β-unsaturated aldehydes. The new catalyst provides the best results so far reported for intermol. enantioselective organocatalyzed cyclopropanation. The experimental process involved the reaction of H-Idc-OH(cas: 79815-20-6).Synthetic Route of 79815-20-6
The Article related to unsaturated aldehyde sulfur ylide chiral indolinyltetrazole diastereoselective enantioselective cyclopropanation, cyclopropane carboxaldehyde derivative stereoselective preparation, intermol diastereoselective enantioselective cyclopropanation organocatalyst chiral indolinyltetrazole and other aspects.Synthetic Route of 79815-20-6
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Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles