Rhodium-Catalyzed Asymmetric Hydroarylation of 3-Pyrrolines Giving 3-Arylpyrrolidines: Protonation as a Key Step
摘要:
A hydroxorhodium complex coordinated with (R)-segphos was found to catalyze the hydroarylation of 3-pyrrolines with arylboroxines under neutral conditions to give 3-arylpyrrolidines with high enantioselectivity in high yields.
Cationic NHC–Pd (NHC=N-heterocyclic carbene) complex-catalyzed cycloisomerization of dienes
作者:Young-Jin Song、Il Gu Jung、Harim Lee、Young Tak Lee、Young Keun Chung、Hye-Young Jang
DOI:10.1016/j.tetlet.2007.06.162
日期:2007.8
A variety of [(NHC)Pd( eta(3)-allyl)]Cl (NHC = N-heterocyclic carbene) involving different allyl groups and NHC ligands were synthesized and employed for the cycloisomerization of 1,6-dienes to form cyclic compounds selectively. (c) 2007 Elsevier Ltd. All rights reserved.
Synthesis of N-Sulfonyl- and N-Acylpyrroles via a Ring-Closing Metathesis/Dehydrogenation Tandem Reaction
N-acylpyrroles were synthesized via olefin ring-closingmetathesis of diallylamines and in situ oxidative aromatization in the presence of the ruthenium Grubbs catalyst and a suitable copper catalyst. In the presence of Cu(OTf)2 and CuBr2, the reaction afforded N-sulfonyl- and N-acylpyrroles, respectively, in one pot. Under an oxygen atmosphere, the reaction went smoothly without the need of hydroperoxide
Rhodium-Catalyzed Asymmetric Hydroarylation of 3-Pyrrolines Giving 3-Arylpyrrolidines: Protonation as a Key Step
作者:Chau Ming So、Satoshi Kume、Tamio Hayashi
DOI:10.1021/ja406169s
日期:2013.7.31
A hydroxorhodium complex coordinated with (R)-segphos was found to catalyze the hydroarylation of 3-pyrrolines with arylboroxines under neutral conditions to give 3-arylpyrrolidines with high enantioselectivity in high yields.