Substrate dependent reaction channels of the Wolff-Kishner reduction reaction: A theoretical study.

ABSTRACT: Wolff-Kishner reduction reactions were investigated by DFT calculations for the first time. B3LYP/6-311+G(d,p) SCRF=(PCM, solvent = 1,2-ethanediol) optimizations were carried out. To investigate the role of the base catalyst, the base-free reaction was examined by the use of acetone, hydrazine (H2N-NH2) and (H2O)8. A ready reaction channel of acetone → acetone hydrazine (Me2C=N-NH2) was obtained. The channel involves two likely proton-transfer routes. However, it was found that the base-free reaction was unlikely at the N2 extrusion step from the isopropyl diimine intermediate (Me2C(H)-N=N-H). Two base-catalyzed reactions were investigated by models of the ketone, H2N-NH2 and OH(-)(H2O)7. Here, ketones are acetone and acetophenone. While routes of the ketone → hydrazone → diimine are simil

SUBMITTER: Yamabe S 

PROVIDER: S-EPMC3943666 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature