METHOD FOR PREPARING 7-MERCAPTO-3-METHYL-3H-ISOBENZOFURAN-1-ONE Russian patent published in 2007 - IPC C07D307/88

Abstract RU 2310649 C2

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

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RU 2 310 649 C2

Authors

Zajfert Gottfrid

Urviler Bernkhard

Dates

2007-11-20—Published

2001-10-09—Filed