Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-09-23
1977-03-29
Gerstl, Robert
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260514H, C07C 5100
Patent
active
040149188
ABSTRACT:
Process for the preparation of racemic or optically-active cyclopropane carboxylic acid of the formula ##STR1## wherein the CO.sub.2 H substituent on the carbon 1 and the ##STR2## substituent on the carbon 2 are in the cis-position relative to one another, R.sub.1 represents a hydrogen, an alkyl radical, an aralkyl radical, an aryl radical, an alkenyl radical, an alkynyl radical, a cycloalkyl radical, a cycloalkenyl radical, a heterocyclic radical, these radicals being able to be substituted, specifically by lower alkyl or lower alkoxy, or represents a cyano group, an acyl group, a formyl group, an alkoxycarbonyl group or a nitro group, and Z represents the R.sub.2 residue which has the same meaning as R.sub.1 but is identical or different thereto, or the R.sub.3 residue, which represents an allyl radical, a benzyl radical, a cyano group, an acyl group, a formyl group, an alkoxycarbonyl group, or a nitro group, or R.sub.1 and Z together form a saturated or unsaturated carbon homocycle or heterocycle, whose ring can support substituents such as lower alkyls or lower alkoxys, or functions such as ketonic functions, or together form a polycyclic aromatic residue such as a fluorene residue.
REFERENCES:
house, Modern Synthetic Reactions, pp. 249-250, (1965).
Gerstl Robert
Roussel-Uclaf
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