METHOD FOR PREPARING 7-MERCAPTO-3-METHYL-3H-ISOBENZOFURAN-1-ONE

摘要

FIELD: organic chemistry, chemical technology. ^ SUBSTANCE: invention relates to a method for synthesis of 7-mercapto-3-methyl-3H-isobenofuran-1-one of the formula (I) given in the invention description by interaction of phenyldiazonium salt of the formula: wherein X means halogen atom or bisulfate with sulfur at increased temperature in the presence of an aqueous base. The end product is isolated as sodium salt mainly. Compound of the formula (I) can be used as intermediate substance used in synthesis of isobenzofuran herbicides. ^ EFFECT: improved method of synthesis. ^ 2 cl, 1 ex