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J Org Chem. 2015 Sep 18;80(18):9200-7. doi: 10.1021/acs.joc.5b01633. Epub 2015 Sep 1.

Lewis Acid Mediated Tandem Reaction of Propargylic Alcohols with Hydroxylamine Hydrochloride To Give α,β-Unsaturated Amides and Alkenyl Nitriles.

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1
State Key Laboratory of Applied Organic Chemistry, Lanzhou University , Lanzhou 730000, People's Republic of China.

Abstract

We have developed a highly selective method for the synthesis of α,β-unsaturated amides and alkenyl nitriles from readily available propargylic alcohols. The reaction proceeded smoothly under the neutral conditions with hydroxylamine hydrochloride (NH2OH·HCl) as the nitrogen source. The development of these new strategies has significantly extended the application of hydroxylamine hydrochloride to the chemistry of propargylic alcohols. Moreover, both secondary and tertiary alcohols have been highly regioselectively transformed to the desired products with good functional group compatibility.

PMID:
26317753
DOI:
10.1021/acs.joc.5b01633

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