Journal of Organometallic Chemistry p. 41 - 48 (1992)
Update date:2022-07-30
Topics: Work-Up Carbonylation
Tsuji, Yasushi
Ishii, Tetusya
Triisopropoxymethyltitanium (1a) or diisopropoxydimethyltitanium (1b) was treated with carbon monoxide (1 atm, balloon) at room temperature overnight (16-18 h), and then the reaction mixture was added to various allyl derivatives in the presence of palladium catalyst (5 molpercent based on the allylic derivatives) at room temperature.From 1b and cinnamyl acetate in the presence of tetrakis(triphenylphosphine)palladium, (E)-3,3-dimethyl-6-phenyl-5-hexen-2-one (5a) was afforded in 57percent yield.A similar reaction with trans-2-hexenyl acetate also gave the corresponding γ-δ-unsaturated ketone in 57percent yield.The formation of the products would be rationalized by titanium η2-acyl and oxicarbenoid intermediates.
View MoreNEW FORTUNE INDUSTRIAL CO.,LTD.
website:http://newfortune.lookchem.com/
Contact:+86-25-8645-9456
Address:C4-105 GREEN ISLAND FLOWER TOWN
Springchem New Material Technology Co.,Limited
website:http://www.spring-chem.com
Contact:86-21-62885108
Address:602B, Building 1, No. 641, Tianshan Road
Sanming Coffer Fine Chemical Industrial Co., Ltd
website:http://www.cofferxm.com/
Contact:+86-598-5853979
Address:Jin-sha Yuan Chuang-ye Park,Hi-Tech Development Zone,Sanming City P.R.China
ShiJiaZhuang Dowell Chemical Co.,Ltd.
website:http://www.dowechem.com
Contact:+86-13463963265
Address:Xiyangling village, high tech Zone, Shijiazhuang,Hebei, China
Contact:86-571-61063068
Address:LINAN
Doi:10.1039/jr9620000645
(1962)Doi:10.1021/jo01037a525
(1963)Doi:10.1021/jm3008079
(2012)Doi:10.1021/jo301659c
(2012)Doi:10.1002/asia.201100284
(2011)Doi:10.3762/bjoc.8.142
(2012)