MeOTf-mediated alkynylation of selenoamides leading to beta-methylselenenyl alpha,beta-unsaturated ketones and their characterization.
Org Lett
; 3(13): 1993-5, 2001 Jun 28.
Article
in En
| MEDLINE
| ID: mdl-11418032
ABSTRACT
[reaction see text] beta-Methylselenenyl alpha,beta-unsaturated ketones were effectively synthesized by treating selenoamides with methyl triflate, followed by reaction with lithium acetylides. The reaction proceeded with high stereoselectivity to give exclusively Z-isomers. (77)Se NMR studies and X-ray molecular structure analysis of beta-methylselenenyl alpha,beta-unsaturated ketones suggested that the products show 1,5-nonbonding interaction between the selenium atom and carbonyl oxygen atom.
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Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Org Lett
Journal subject:
BIOQUIMICA
Year:
2001
Document type:
Article
Affiliation country:
Japan
Publication country:
EEUU
/
ESTADOS UNIDOS
/
ESTADOS UNIDOS DA AMERICA
/
EUA
/
UNITED STATES
/
UNITED STATES OF AMERICA
/
US
/
USA