Tetrahedron Letters p. 4197 - 4200 (1993)
Update date:2022-08-04
Topics:
Duhamel
Guillemont
Poirier
Chabardes
Depending on the steric hindrance of the reaction centers, hemiacetal vinylogs 1 in the presence of BF3.OEt2 can, with enol ethers, lead to a Michael-type addition (4) or an aldolisation-type reaction (3). Hemiacetal vinylog 1b always yields the second reaction leading to β-methoxy-γ,δ-ethylenic carbonyl compounds 4 precursors of polyenic carbonyl compounds 5. Crotonaldehyde and methanol can be used instead of compound 1b.
View MoreNingbo Distant Chemicals Co.,Ltd
Contact:86-574-27862490,27862438
Address:5F-3,#54 DaShaNi street,Ningbo,CHINA
Suzhou Jingye Medicine & Chemical Co., Ltd
Contact:+86-512-66658588
Address:No. 88, Sanlian Street, Jinfeng Road, Suzhou New District, Jiangsu Province, P. R. China
LIAONING DMSO CHEMICALS CO.,LTD.
website:http://www.chinadmso.com
Contact:+86-427-6503033
Address:FLOOR 16, BLOCK A, FINANCIAL SQUARE, XINGLONGTAI DISTRICT, PANJIN CITY, LIAONING P.R. CHINA
Luoyang Aoda chemical Co.,Ltd.
Contact:+86-379-67518785 67516588
Address:MiaoWan industry district,YanShi City,Henan,China
Ningbo Tide Imp. & Exp. Co., Ltd.
Contact:+86-571-8993 7933; +86-571-8993 6453
Address:7/F Anno Domini Building, Tower South, 8 Qiu Shi Road,Hangzhou,China.
Doi:10.1016/S0040-4039(01)80435-4
(1989)Doi:10.1021/jm00081a009
(1992)Doi:10.1016/j.bmc.2010.07.063
(2010)Doi:10.1248/cpb.58.479
(2010)Doi:10.1038/nchem.727
(2010)Doi:10.1021/ol500766v
(2014)
