
Disclosed is a process for the production of acids of the formula ##STR1## wherein R is 2-fluoro-4-(1,1'-biphenyl), 4-(2-methylpropyl)phenyl, 6-methoxy-2-napthyl, 3-benzophenyl, 4-(2-thienylcarbonyl)-phenyl or 7-chlorocarbazole-3-yl which comprises contacting an organometallic compound of the formula R--M--R.sub.1 (G) with an allyl halide of the formula ##STR2## to produce an olefin of the formula ##STR3## ozonolysis of the olefin (II) to produce an aldehyde of the formula ##STR4## which is oxid...











