Online article for Non-subscribers

Pay per view

Heterocycles has a pay-per-view service for Non-subscribers.
You will be able to directly purchase the full text article through PayPal.
Your purchased Paper can be downloaded after the payment is completed.
An e-mail will be sent the URL to download the paper.
If you have any questions, please contact:

Price: ¥ 4,400 (Yen only)
Period: This Article can be accessed for 7 days.

Communication | Special issue | Vol 42, No. 2, 1996, pp.549-553
Published online, 1st January, 1970
DOI: 10.3987/COM-95-S96
Aprotic Chloride and Bromide-promoted Alkyne-Iminium Ion Cyclizations

Yoshinori Murata and Larry E. Overman

*Department of Chemistry, University of California, Irvine, California 92717-2025, U.S.A.


The title cyclizations of 4-alkynyl- and 3-alkynyl-N-(methoxymethyl)-mines occur under milder conditions, and in the case of chloride in higher yields, than direct cyclizations of the corresponding secondary amine with formaldehyde and a halide salt.