151061-68-6Relevant articles and documents
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.
Biocatalytic reduction of a racemic selenocyclohexanone by Brazilian basidiomycetes
Piovan, Leandro,Capelari, Marina,Andrade, Leandro H.,Comasseto, Joao V.,Porto, Andre L.M.
, p. 1398 - 1402 (2008/02/11)
An efficient synthesis of the chiral cyclic secondary alcohols, trans-2-(phenylseleno)cyclohexanol 1a and cis-2-(phenylseleno)cyclohexanol 1a, was obtained by enzymatic reduction of 2-(phenylseleno)cyclohexanone 1 using whole fungal cells. Five strains of white-rot basidiomycetes were examined; Irpex lacteus CCB 196, Pycnoporus sanguineus CCB 196, Trametes rigida CCB 285, Trametes versicolor CCB 202 and Trichaptum byssogenum CCB 203. Cells of T. rigida CCB 285 gave alcohols cis-(RS)-1a and trans-(SS)-1a in high enantiomeric excesses (ca. 99%).
SYNTHESIS OF 2-NITROALKYL PHENYL SELENIDES AND THEIR CONVERSION TO NITROALKENES
Hayama, Takashi,Tomoda, Shuji,Takeuchi, Yoshito,Nomura, Yujiro
, p. 1109 - 1112 (2007/10/02)
Treatment of alkenes with benzeneselenenyl bromide followed by addition of silver nitrite provided a mixture of 2-nitroalkyl and 2-hydroxyalkyl phenyl selenides.Oxidation of the former selenides with hydrogen peroxide gave nitroalkenes in 90-93 percent yields.