68771-08-4Relevant articles and documents
Efficient and enantioselective kinetic resolution of cyclic β-hydroxy sulfides by chiral 1,2-diamine catalyzed asymmetric acylation
Kawamata, Yoshiyuki,Oriyama, Takeshi
experimental part, p. 382 - 384 (2010/07/06)
Kinetic resolution of cyclic β-hydroxy sulfides has been achieved by reaction with benzoyl chloride in the presence of a catalytic amount (0.1 mol %) of a chiral 1,2-diamine combined with triethylamine. This reaction affords the corresponding benzoates and unreacted alcohols with excellent enantioselectivities.
Catalytic asymmetric ring-opening reaction of meso-epoxides with aryl selenols and thiols catalyzed by a heterobimetallic gallium-titanium-salen complex
Sun, Jiangtao,Yang, Minghua,Yuan, Fang,Jia, Xuefeng,Yang, Xia,Pan, Yi,Zhu, Chengjian
supporting information; experimental part, p. 920 - 930 (2009/11/30)
A chiral heterobimetallic Lewis acid complex has been developed as an efficient catalyst. The enantioselective desymmetrization of meso-epoxides with aryl selenols and thiols catalyzed by the heterobimetallic complex has been optimized. The optically active β-arylseleno alcohols and β-hydroxy sulfides were obtained in good yields and high enantioselec- tivities (up to 97% ee and 92% ee, respectively). A strong synergistic effect between different Lewis acids was exhibited in the catalytic process. & copy; 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
