Phosphorus, Sulfur and Silicon and the Related Elements p. 1 - 10 (1997)
Update date:2022-08-11
Topics:
Tsai, Hou-Jen
Diethyl(fluorocarbethoxymethyl)phosphonate 1a or diisopropyl(fluorocarbethoxymethyl)phosphonate 1b, prepared from triethyl phosphite or triisopropyl phosphite with ethyl bromofluoroacetate, react with n-butyllithium in THF to give the corresponding phosphonate carbanions [(RO)2P(O)CFCO2Et]-Li+ 2a (R = Et) and 2b (R = i-Pr). Addition of trimethylsilyltrifluoroacetate CF3C(O)OSiMe3 to a THF solution of phosphonate carbanions formed the enolate of ethyl trifluoroacetylfluoroacetate [CF3C(O)CFCO2Et]-Li+ 3. Subsequent protonation, alkylation or allylation of the enolate afforded substituted 2,4,4,4-tetrafluoro-3-oxoesters CF3C(O)CFR1CO2Et 10.
View MoreZhejiang Kangfeng Chemical Co.,LTD.
Contact:+86-579-86709687
Address:Xueshizhai Industrial Zone, Weishan Town,Dongyang City, Zhejiang Province ,China
Chengdu Green technology Co.,Ltd.
Contact:86-28-82608355
Address:C9 ,Economic Headquarters, Economic Development Zone, Chengdu.
PharmaResources(Kaiyuan)CO,.Ltd
Contact:+86-21-50720028
Address:No.3, Beihuan Road, Economic Development District, Kaiyuan City, Tieling City, Liaoning Province, China 112300
Yancheng Creator Chemical Co., Ltd
Contact:0086-515-88710008 88710068 88710858 88710868
Address:No.21 Renming Road, Longgang Town, Yandu County,Yancheng City
Shandong Yaroma Perfumery Co., Ltd.
Contact:+86- 531- 88024598
Address:7-702 Caizhi Central, 59 Gong Ye South Road, Jinan City,250101, P. R. China
Doi:10.1134/S0023158417030119
(2017)Doi:10.1016/S0040-4039(03)00229-6
(2003)Doi:10.1002/hlca.19470300403
(1947)Doi:10.1021/jo035088o
(2003)Doi:10.1021/ja01256a056
(1942)Doi:10.1021/ja903396e
(2009)