Journal
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
Volume 79, Issue 9, Pages 1315-1321Publisher
CHEMICAL SOC JAPAN
DOI: 10.1246/bcsj.79.1315
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New catalytic reactions in which transition-metal cyclobutanolates undergo beta-carbon elimination have been developed in our laboratory. Rhodium(I) cyclobutanolate generated by the addition of an arylrhodium(I) species to a cyclobutanone undergoes beta-carbon elimination to cause ring opening of the four-membered carbocyclic framework. The synthetic potential of the ring-opening process through beta-carbon elimination has been demonstrated by its application to a ring-expansion reaction forming a seven-membered ring. Furthermore, a formal alkyne insertion into the cyclobutanone framework is achieved by combining oxidative cyclization of a cyclobutanone and an alkyne on nickel(0) and beta-carbon elimination from the resulting nickel(II) cyclobutanolate.
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