Metal-Free, Organocatalytic Syn Diacetoxylation of Alkenes
摘要:
A novel method for the organocatalytic syn diacetoxylation of alkenes has been developed using aryl iodides as efficient catalysts. A broad range of substrates, including electron-rich as well as electron-deficient alkenes, are smoothly transformed by the new procedure, furnishing the desired products in good to excellent yields with high diastereoselectivity (up to >19:1 dr).
Vicinal Difunctionalization of Alkenes under Iodine(III) Catalysis involving Lewis Base Adducts
作者:Kristina Aertker、Raquel J. Rama、Julita Opalach、Kilian Muñiz
DOI:10.1002/adsc.201601178
日期:2017.4.17
by X‐ray analysis. This arrangement was shown to generate a kinetically competent superior catalyst structure for the catalytic dioxygenation of alkenes. It introduces the concept of Lewis base adduct formation as a kinetic factor in iodine(I/III) catalysis.
Enantioselective Vicinal Diacetoxylation of Alkenes under Chiral Iodine(III) Catalysis
作者:Kilian Muñiz、Thorsten Wöste
DOI:10.1055/s-0035-1561313
日期:——
corresponding vicinal diacetoxylation products with up to 96% ee. A procedure for the intermolecular enantioselective dioxygenation of alkenes under iodine(III) catalysis has been developed. This protocol employs Selectfluor as the terminal oxidant together with a defined C 2-symmetric aryl iodide as the organocatalyst. This enantioselective reaction proceeds under mild conditions and converts a series of
Green Diacetoxylation of Alkenes in a Microchemical System
作者:Jeong Hyeon Park、Chan Yi Park、Hyun Seung Song、Yun Suk Huh、Geon Hee Kim、Chan Pil Park
DOI:10.1021/ol3026445
日期:2013.2.15
The palladium-catalyzed diacetoxylation and trifluoromethanesulfonic acid-catalyzed diacetoxylation using inexpensive and environmentally friendly hydrogenperoxide and peracetic acid were successfully conducted with the help of microchemical technology. Excellent yield and selectivity were achieved in significantly shortened reaction times without the decomposition of explosive oxidants and further