✦ LIBER ✦

A novel reaction of guanidine with benzaldehydes

✍ Scribed by P. Gund; G. Berkelhammer; R.S. Wayne

Publisher: Elsevier Science
Year: 1972
Tongue: French
Weight: 198 KB
Volume: 13
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)94214-5

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✦ Synopsis

Bbeeimd in USA 26 Jnme 1972; reoeived in DX for pnblioation 21 Angust 1972) We have obtained an unexpected oxidation-reduction product from the reaction of guanidine and benzaldehydes in the presence of strong base. For example, R-cblorobenzaldehyde, guanidine carbonate.and sodium methoxide (3:1:2) in abs. ethanol (room temp., 4 hrs.) gave, after acidification with cont. HCl, 42% of l-(p-chlorobenzoyl)-3-(R-chlorobenzyl)guanidine HCl (A*HCl, Ar = p-Cl-C6H4).

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