Published May 15, 2013 | Version Supplemental Material
Journal Article Open

α-Diazo-β-ketonitriles: Uniquely Reactive Substrates for Arene and Alkene Cyclopropanation

  • 1. ROR icon California Institute of Technology

Abstract

An investigation of the intramolecular cyclopropanation reactions of α-diazo-β-ketonitriles is reported. These studies reveal that α-diazo-β-ketonitriles exhibit unique reactivity in their ability to undergo arene cyclopropanation reactions; other similar acceptor–acceptor-substituted diazo substrates instead produce mixtures of C–H insertion and dimerization products. α-Diazo-β-ketonitriles also undergo highly efficient intramolecular cyclopropanation of tri- and tetrasubstituted alkenes. In addition, the α-cyano-α-ketocyclopropane products are demonstrated to serve as substrates for S_(N)2, S_(N)2′, and aldehyde cycloaddition reactions.

Additional Information

© 2013 American Chemical Society. Received: February 21, 2013; Published: May 3, 2013. We thank Prof. Brian Stoltz, Dr. Scott Virgil, and the Caltech Center for Catalysis and Chemical Synthesis for access to analytical equipment. We also thank Sigma-Aldrich for a kind donation of chemicals. S.E.R. is a fellow of the Alfred P. Sloan Foundation and a Camille Dreyfus Teacher-Scholar. Financial support from the National Science Foundation (CAREER-1057143), Boehringer-Ingleheim, Amgen, and the California Institute of Technology is gratefully acknowledged.

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Additional details

Identifiers

Eprint ID
39168
DOI
10.1021/ja401610p
Resolver ID
CaltechAUTHORS:20130701-134649902

Funding

Alfred P. Sloan Foundation
Camille and Henry Dreyfus Foundation
NSF
CHE-1057143
Boehringer-Ingleheim
Amgen
Caltech

Dates

Created
2013-07-02
Created from EPrint's datestamp field
Updated
2021-11-09
Created from EPrint's last_modified field