Journal
ARKIVOC
Volume -, Issue -, Pages 55-65Publisher
ARKAT USA INC
DOI: 10.24820/ark.5550190.p011.765
Keywords
1; 4; 2-Benzodithiazine-1; 1-dioxides; 2; 3-benzoxathiazine-2; 2-dioxides; imidoyl chlorides; sulfonyl chlorides; phenols; thiophenols; heterocyclization reactions
Categories
Ask authors/readers for more resources
A new method utilizing N-chlorosulfonyltrichloroacetimidoyl chloride has been developed for the synthesis of 1,4,2-benzodithiazine and 1,2,3-benzoxathiazine scaffolds. Nucleophilic substitution and intramolecular sulfonylation reactions were employed for selective functionalization of thiophenols and phenols. The synthesized 1,4,2-benzodithiazine-1,1-dioxides exhibited growth-stimulating activity in both monocotyledonous and dicotyledonous plants.
A new effective method for the construction of 1,4,2-benzodithiazine and 1,2,3-benzoxathiazine scaffolds, based on the use of easily accessible N-chlorosulfonyltrichloroacetimidoyl chloride, has been developed. Reactions of thiophenols involved an initial nucleophilic substitution at the imine carbon atom with a thiol sulfur atom, followed by intramolecular sulfonylation of the benzene ring. Phenols exhibit opposite regioselectivity and react by electrophilic imidoylation of the ortho-carbon atom of the benzene ring (C-C bond formation) and sulfonation of the phenol oxygen atom. Synthesized 1,4,2-benzodithiazine-1,1-dioxides exhibit growth-stimulating activity on monocotyledonous winter wheat Bezosta and dicotyledonous plants Barbarea arcuate.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available