Activity of the Carbonyl Group of 4, 7-Dimethyl Indanone - 1

Authors

Robert Cocroft

Document Type

Research

Abstract

The general rule may be drawn that ketones in which the carbonyl group is directly attached to the ring will not react with the usual reagents (hydroxylamine, phenyl-hydrazine, etc.) if the two ortho positions of the ring are occupied by methyl groups. Nothing, however, was known about this effect in the indanones substituted in the 7 position. In these ketones free rotation about the bond between the carbonyl group and the ring is prevented and the increased opportunity for resonance might influence the steric effect. The ketone 4, 7-dimcthyl indanone-1, in which one ortho position is occupied by a methyl group and the other by the end of aliphatic ring, was prepared. It readily formed an oxime (m.p. 175.5 - 177.5° C), a semicarbazone (decomposed 215 - 221° C) and a phenyl-hydrazone (m.p. 99- 101° C).

Publication Date

1941

Journal Title

Proceedings of the Iowa Academy of Science

Volume

48

Issue

1

First Page

245

Last Page

246

Copyright

©1941 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Recommended Citation

Cocroft, Robert (1941) "Activity of the Carbonyl Group of 4, 7-Dimethyl Indanone - 1," Proceedings of the Iowa Academy of Science, 48(1), 245-246.
Available at: https://scholarworks.uni.edu/pias/vol48/iss1/45