An<i>Ortho</i>-Directing Effect in the Nucleophilic Aromatic Substitution Reactions of Primary and Secondary 2,4-Dichloro- and 2,3,4- Trichlorobenzamides with Ethanethiolate
作者:Geoffrey K. Cooper、Don R. Baker、Larry B. Barden
DOI:10.1080/00397919508013427
日期:1995.3
Abstract The reactions of the primary amide and several secondary amides of 2,4-dichloro- and 2,3,4-trichlorobenzoic acid with potassium ethanethiolate in DMF were observed to proceed with a remarkable degree of ortho-regioselectivity. This effect was found to be absent using related tertiary amides as substrates.
Method for producing alkylsulfinylbenzamides and 1,2-benzisothiazol-3-ones
申请人:SUMITOMO SEIKA CHEMICALS CO., LTD.
公开号:EP0657438A2
公开(公告)日:1995-06-14
A method for producing alkylthiobenzamide of formula (III) by carrying out a reaction of a halobenzamide with an alkanethiol in the presence of a base in a heterogeneous solvent; a method for producing an alkylsulfinylbenzamide by carrying out a reaction of an alkylthiobenzamide with a halogen in a heterogeneous solvent; a method for producing an alkylsulfinylbenzamide by carrying out a reaction of a halobenzamide with an alkanethiol in the presence of a base in a heterogeneous solvent and a subsequent reaction with a halogen; and a method for producing a 1,2-benzisothiazol-3-one of formula (VI) by carrying out a reaction of a 2-(alkylthio)benzamide with a halogenating agent.
A method for producing an alkylthiobenzamide by carrying out a reaction of a halobenzamide with an alkanethiol in the presence of a base in a heterogeneous solvent; a method for producing an alkylsulfinylbenzamide by carrying out a reaction of an alkylthiobenzamide with a halogen in a heterogeneous solvent; a method for producing an alkylsulfinylbenzamide by carrying out a reaction of a halobenzamide with an alkanethiol in the presence of a base in a heterogeneous solvent and a subsequent reaction with a halogen; and a method for producing a 1,2-benzisothiazol-3-one by carrying out a reaction of a 2-(alkylthio)benzamide with a halogenating agent.