(2) HC1 RR'COH During this investigation Ivanov reagents were prepared from the sodium salts of phenyl-, 2-thienyl-, 3-thienyl-and p-xenylacetic acid and from the sodium salts of a- substituted phenylacetic acids such as diphenyl-, benzylphenyl-, cyclohexylphenyl-and phenoxyphenylacetic and a-phenylbutyric acid. These reagents were allowed to react with a variety of acyclic aldehydes and ketones and with cyclic ketones such as cyclopentanone, ...