Tetrahedron p. 2841 - 2848 (1994)
Update date:2022-08-05
Topics:
Szymoniak, Jan
Besancon, Jack
Moise, Claude
NbCl3 (DME) was found to be a useful reagent for the intermolecular pinacol coupling of aliphatic aldehydes.The high anti diastereoselectivity of this reaction (dl / meso >/= 9 / 1) did not depend on the variation in the aldehyde alkyl chain.With respect to intramolecular pinacolization, the loss of the stereoselectivity observed is consistent with the mechanism involving an insertion of the oxo-group into the metal-carbon bond of the intermediate niobiooxirane. - Key Words: Nb(III) reagent; Pinacol coupling; Acetalization; Stereoselectivity
View MoreContact:+1-973-357-0577
Address:10 Taft Rd.
ShiJiaZhuang Dowell Chemical Co.,Ltd.
website:http://www.dowechem.com
Contact:+86-13463963265
Address:Xiyangling village, high tech Zone, Shijiazhuang，Hebei, China
SJZ Chenghui Chemical Co., Ltd.
Contact:86-311-87713916
Address:no.368 youyi north avenue
Hunan Haili Chemical Industry Co.,Ltd.
Contact:+86-731-85521860
Address:No.251, 2nd Section, Furong Road, Changsha,Hunan,China
ClickChem Technology Co., Limited
Contact:+86-0310-6519966/0531-52893837
Address:No.750 Shunhua Road, High-Tech Zone, Jinan city, Shandong China
Doi:10.1080/00397919908086457
(1999)Doi:10.1021/jo9825097
(1999)Doi:10.1021/jo990390b
(1999)Doi:10.1016/S0277-5387(98)00405-7
(1999)Doi:10.1021/jo990069t
(1999)Doi:10.1002/jps.2600580320
(1969)
