Preparation of vinylglyoxal derivatives, novel vinylglyoxal deri

Details Preparation of vinylglyoxal derivatives, novel vinylglyoxal deri Preparation of vinylglyoxal derivatives, novel vinylglyoxal deri

1987-10-28

1990-01-16

Reamer, James H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568412, 568375, 568376, 568379, 568381, 568303, 568337, 558415, C07C 49217

Patent

active

048944831

ABSTRACT:
Vinylglyoxal derivatives of the general formula I ##STR1## where R is straight-chain or branched alkyl or alkenyl, cycloalkyl or unsubstituted or substituted phenyl, are prepared by a process in which bicyclo[2.2.1]hept-5-enecarbaldehyde of the formula V ##STR2## is either (a) subjected to autocondensation with formation of a compound of the formula VII ##STR3## or (b) reacted with a compound of the general formula II

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