METHOD OF DELTA-PYRONENE SYNTHESIS Russian patent published in 1994 - IPC

Abstract RU 2017709 C1

FIELD: chemical technology. SUBSTANCE: delta-pyronene is prepared by pyrolysis of derivatives of hexahydrobenzothiophene-2,2-dioxide at temperature above 150 C in the presence of catalyst with basic property. Method is used for vitamins production. EFFECT: improved method of synthesis.

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RU 2 017 709 C1

Authors

Zhan-P'Er Djushesn[Fr]

Dates

1994-08-15—Published

1991-12-06—Filed