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Zhiwei Chen Yusuke Aota Hillary M. H. Nguyen Vy M. Dong 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(14):4753-4757
We report a dynamic kinetic resolution (DKR) of chiral 4‐pentenals by olefin hydroacylation. A primary amine racemizes the aldehyde substrate via enamine formation and hydrolysis. Then, a cationic rhodium catalyst promotes hydroacylation to generate α,γ‐disubstituted cyclopentanones with high enantio‐ and diastereoselectivities. 相似文献
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《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2017,129(9):2489-2493
Enantio‐ and diastereoselective synthesis of trans ‐2,3‐disubstituted indanones is achieved by intramolecular hydroacylation of 2‐alkenylbenzaldehydes bearing trisubstituted alkenyl groups under cobalt‐chiral diphosphine catalysis. Notably, a high level of enantioselectivity is induced regardless of the stereochemistry (E /Z ratio) of the alkenyl group of the starting material. Deuterium‐labeling experiments shed light on the productive reaction pathways of the E ‐ and Z ‐isomers. 相似文献
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