Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Yamanouchi Pharmaceutical Co Ltd
Original Assignee
Yamanouchi Pharmaceutical Co Ltd
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Filing date
Publication date
Application filed by Yamanouchi Pharmaceutical Co LtdfiledCriticalYamanouchi Pharmaceutical Co Ltd
Priority to JP3883375ApriorityCriticalpatent/JPS51113873A/en
Publication of JPS51113873ApublicationCriticalpatent/JPS51113873A/en
PURPOSE: To obtain 4-Oxo-4H-thopyran derivatives of formula 3 in high yield by reacting esters of formula 1 with benzoquinone derivatives of formula 2.
COPYRIGHT: (C)1976,JPO&Japio
JP3883375A1975-03-311975-03-31Method for synthesizing 4-oxo-4h-thiopyran derivatives
PendingJPS51113873A
(en)