Accession Number:

AD0010252

Title:

AROMATIC ELECTROPHILIC SUBSTITUTION BY HYDROGEN. III. THE ACID-CATALYZED DECARBONYLATION OF 2, 4, 6-TRIALKYLBENZALDEHYDES

Descriptive Note:

Corporate Author:

WASHINGTON UNIV SEATTLE

Personal Author(s):

• Schubert, W. M.
• Zahler, Roland E.

Report Date:

1952-09-30

Pagination or Media Count:

28.0

Abstract:

The rate of decarbonylation of mesitaldehyde was determined by a gasometric method in 70 to 102.9 H sub2 SO sub4 at 100 deg C. In 70 to 96 H sub2 SO sub4 the reactions indicated unimolecular rearrangements of the conjugate acid the reactions in 96 to 100 H sub2 SO sub4 suggested a higher molecularity involving 1 or more solvent species. The comparitive rates of decarbonylation of mesitald-hyde, 2,4,6-triethylbenzaldehyde, and 2,4,6- triisopropylbenzaldehyde were 1 to 4.1 to 17.7.

Descriptors:

• *AROMATIC COMPOUNDS
• ORGANIC ACIDS
• SUBSTITUTION REACTIONS
• SOLVENTS

Subject Categories:

• Organic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE