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Matched Coupling of Propargylic Carbonates with Cyclopropanols.

Author
Abstract
:

The ring opening-coupling reaction of cyclopropanols with propargylic carbonates affording synthetically attractive allenyl ketones has been developed. The mechanism involves the ligand-exchange reaction of in situ formed allenyl palladium methoxide with cyclopropanols followed by carbon-carbon bond cleavage and reductive elimination. The reactions proceeded smoothly under mild reaction conditions with Pd(0)/XPhos catalysis in the absence of any external base and displayed a wide scope and application to a steroidal skeleton. The efficiency of chirality transfer and synthetic utility of the allene products have also been demonstrated.

Year of Publication
:
2018
Journal
:
Organic letters
Date Published
:
2018
ISSN Number
:
1523-7060
URL
:
https://dx.doi.org/10.1021/acs.orglett.7b03637
DOI
:
10.1021/acs.orglett.7b03637
Short Title
:
Org Lett
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