Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1990-08-24
1992-10-27
Raymond, Richard L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
549556, C07D30102
Patent
active
051590891
ABSTRACT:
A process for selective production of a threo-epoxy compound of the formula: ##STR1## wherein Ar is a substituted or unsubstituted phenyl group and R.sup.1 and R.sup.2 are each a lower alkyl group, which comprises reacting a ketone compound of the formula: ##STR2## wherein Ar, R.sup.1 and R.sup.2 are each as defined above with a sulfur methylide of the formula: ##STR3## wherein A is a lower alkyl group or a substituted or unsubstituted phenyl group and B is a lower alkyl group, a substituted or unsubstituted phenyl group or a di(lower)-alkylamino group in an aqueous organic solvent.
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Fujimoto Koji
Ohashi Naohito
Tanaka Yoshihiro
Raymond Richard L.
Russell Mark W.
Sumitomo Pharmaceuticals Company Limited
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