Bulletin of the Chemical Society of Japan p. 455 - 460 (1988)
Update date:2022-07-29
Topics:
Keumi, Takashi
Yoshimura, Kiichiro
Shimada, Masakazu
Kitajima, Hidehiko
A new reagent 2-(trifluoromethylsulfonyloxy)pyridine (TFOP) was prepared by the reaction of sodium salt of 2-pyridinol with trifluoromethylsulfonyl chloride in dioxane.The conpound TFOP in trifluoroacetic acid has been found to intermolecularly dehydrate from benzoic acid and aromatic hydrocarbons to give the corresponding benzophenones in high yield.It was further elucidated, in the reaction of fluorene, that a variety of carboxylic acids can be used as the acyl precursor for the aromatic ketone synthesis in conjunction with the TFOP/TFA system.This acylation procedure has been applied to the synthesis of 2-acylthiophenes, which are hard to prepare in a satisfactory yield by the classical Friedel-Crafts reaction using aluminum chloride as the catalyst.
View MoreMedicalChem(Yancheng)Manuf.Co.,Ltd.
Contact:+86-515-84383366
Address:Touzeng BinHai, YanCheng City, JiangSu Province, China
Ningbo Hi-tech Zone Nice-Synth Chemical Industry Ltd.
Contact:+86-(574)-81110986
Address:No. 1210, Building 3, Wante Business Centre, Hi-tech Zone, Ningbo
Suzhou Jingye Medicine & Chemical Co., Ltd
website:http://www.jingyechem.cn
Contact:+86-512-66658588
Address:No. 88, Sanlian Street, Jinfeng Road, Suzhou New District, Jiangsu Province, P. R. China
Shanghai PengMo Biotechnology Co.,Ltd
website:http://www.pengmobio.lookchem.com
Contact:86-13052359378
Address:No.218 Hai Qu Road.Shanghai.China
Chengdu Green technology Co.,Ltd.
Contact:86-28-82608355
Address:C9 ,Economic Headquarters, Economic Development Zone, Chengdu.
Doi:10.1016/j.bmc.2008.10.042
(2008)Doi:10.1021/jo801839t
(2009)Doi:10.1016/j.tet.2008.08.115
(2008)Doi:10.1016/j.tetlet.2008.10.005
(2008)Doi:10.1002/ejoc.200800618
(2008)Doi:10.1039/c4cc04668d
(2014)