Document Detail

Intramolecular hydroamination of alkynes catalyzed by Pd(PPh3)4/triphenylphosphine under neutral conditions.
MedLine Citation:
PMID:  15932337     Owner:  NLM     Status:  PubMed-not-MEDLINE    
The intramolecular hydroamination of alkynes tethered with amino group 1 in the presence of catalytic amounts of Pd(PPh3)4 and PPh3 in benzene at 100 degrees C proceeded smoothly without the use of any additional acid source to afford five- and six-membered nitrogen heterocycles 2 in good to excellent yields. A compulsory addition of carboxylic acid as a cocatalyst was not needed, and the reaction could be carried out under essentially neutral conditions.
Gan B Bajracharya; Zhibao Huo; Yoshinori Yamamoto
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of organic chemistry     Volume:  70     ISSN:  0022-3263     ISO Abbreviation:  J. Org. Chem.     Publication Date:  2005 Jun 
Date Detail:
Created Date:  2005-06-03     Completed Date:  2005-07-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2985193R     Medline TA:  J Org Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  4883-6     Citation Subset:  -    
Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
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