Helvetica Chimica Acta p. 961 - 972 (1996)
Update date:2022-08-05
Topics:
Misun, Marian
Pfaltz, Andreas
'Semicorrin' cobalt complexes, prepared in situ from cobalt(II) chloride and the corresponding ligands, are efficient catalysts for the enantioselective reduction of electrophilic C=C bonds with NaBH4. The best selectivities (> 90% ee) are achieved with α,β-unsaturated carboxamides and carboxylates. Analogous α,β-unsaturated nitriles, sulfones, and phosphonates afford enantiomenc excesses of 50-70%. Interestingly, in the reduction of α,β-unsaturated sulfones, the highest enantioselectivities were obtained with unsymmetrical 'semicorrins', whereas in all other cases C2-symmetric 'semicorrins' proved to be superior.
View MoreSinoway International (Jiangsu) Co., Ltd.
Contact:+86-25-86630167
Address:17 Beijing Road (West), Nanjing, China
Twin International Co., Limited
Contact:+86-21-80309280
Address:No.345 Jinxiang Road, Jinqiao Export Processing Zone
RongCheng K&S Chemical Co.,Ltd
Contact:0631-7336369
Address:rongcheng ,shandong province china
Contact:+86-15995924277
Address:WuZhongOu suzhou new south road 89
Beijing Harmony Chemical Co., Ltd.
Contact:86-010-84956928
Address:Room 207, Jin feng he B building, No 8 Xin Jie Kou Wai Street, Xi Cheng District, Beijing,PRC. 10008
Doi:10.1246/bcsj.69.1705
(1996)Doi:10.1039/d1ob01002f
(2021)Doi:10.1016/0040-4039(96)01209-9
(1996)Doi:10.1007/BF02674051
(1955)Doi:10.1016/0960-894X(96)00296-X
(1996)Doi:10.1016/0040-4020(96)00542-X
(1996)