The Benzoin Condensation of Quinaldehyde

In the benzoin condensation of quinaldehyde. (I) none of the expected benzoin, but instead the isomeric l,2-di-2-quinolyl-l,2-ethenediol (II) and its ...
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THEBENZOINCONDENSATION OF QUINALDEHYDE

Nov., 1950 [CONTRIBUTION NO.

5015

87 FROM THE DEPARTMENT OF CHEMISTRY, UNIVERSITY O F TENNESSEE]

The Benzoin Condensation of Quinaldehyde BY C. A. BUEHLERAND JAMES 0. HARRIS^ In the benzoin condensation of quinaldehyde (I) none of the expected benzoin, but instead the isomeric 1,2-di-2-quinolyl-l,2-ethenediol (11) and its reduction product, 1,2-di-2-quinolyl-l,2ethanediol (111) were obtained, the amounts varying with the experimental conditions emdoved. RCHO KCN

1

OH OH

I

R-C-C-R

I