Accession Number:

AD0269306

Title:

RESEARCH ON ELECTRONICALLY EXCITED STATES AND THEIR REACTIONS

Descriptive Note:

Corporate Author:

SOUTHAMPTON UNIV (ENGLAND)

Personal Author(s):

Report Date:

1961-05-20

Pagination or Media Count:

1.0

Abstract:

The reaction of dienes, especially bicycloheptadiene, with metal carbonyls was explored. A range of ketones and hydrocarbons were isolated, and the structures and stereochemistry of most were worked out. Both double bonds of the cyclooctatetraene - maleic acid adduct take part in electrophilic addition, forming tetracyclic products. The unusual rearrangement of the acetylene-dicarboxylic ester adduct to derivatives of naphthalene-26-dicarboxylic ester was investigated. The Woodward-Katz rearrangement of 8-oxo-dicyclopentadiene takes place very rapidly and is catalysed by Lewis acids. Such acid catalysis has been extended to the inter-molecular Diels-Alder reaction. Ultraviolet irradiation of dimethylbenzoquinones gives a series of cis and trans dimers by addition of two double bonds to form a cyclobutane ring. The cis dimers undergo a second reaction of the same sort to give saturated, box-shaped molecules. 1-Oxodicyclopentadiene gives a cage-photoisomer that is remarkably stable. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE