The enantioselectivesynthesis of P-stereogenic chiral organophosphines under organocatalysis is a challenging research field, and reports that use this approach are rare. Herein, we have developed the enantioselectivesynthesis of P-stereogenic chiral oxazaphospholidines by using a bicyclic thiazole as the organocatalyst in the P–N and P–O bond-forming reaction. The P-chiral products were prepared
Moussa, G. E. M.; Basyouni, M. N.; Shaban, M. E., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1980, vol. 19, # 9, p. 798 - 800
作者:Moussa, G. E. M.、Basyouni, M. N.、Shaban, M. E.
DOI:——
日期:——
SHKLYAEV V. S.; ALEKSANDROV B. B., (REDKOLLEGIYA ZH. IZV. VYSSH. UCHEB. ZAVEDENIJ. XIMIYA I XIM. TEXNOL.). I+
作者:SHKLYAEV V. S.、 ALEKSANDROV B. B.
DOI:——
日期:——
Copper-Catalyzed Aerobic Aliphatic C–H Oxygenation Directed by an Amidine Moiety
作者:Yi-Feng Wang、Hui Chen、Xu Zhu、Shunsuke Chiba
DOI:10.1021/ja305833a
日期:2012.7.25
A method for the oxygenation of tertiary C-H bonds of N-alkylamidines and N-(2-alkylaryl)amidines is described that utilizes the CuBr·SMe(2)/2,2'-bipyridine catalytic system under an O(2) atmosphere and provides dihydrooxazoles and 4H-1,3-benzoxazines. The oxygen atom is incorporated from atmospheric molecular oxygen during the present process.
New Oxazaborolidine Catalysts for the Diels–Alder Reaction
作者:Yasushi Shimoda、Hisashi Yamamoto
DOI:10.1055/s-0036-1588082
日期:——
enantioselectivity. A new axially chiral oxazaborolidine catalyst has been developed. This catalyst consists of a chiral boronic acid and an easily modifiable achiral amino alcohol. It could be applied to a Diels–Alderreaction to give the corresponding adduct with good enantioselectivity. Additionally, the bis(oxazaborolidine) catalyst, bearing two Lewis acidic centers enabled a Diels–Alderreaction with higher