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Trimethylsilyl Triflate Promoted 1,4-Addition of Silyl Phosphites to Cyclic Enones
* 1 , 2 , 2 , * 3 , 2 , 2 , 2
1  Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 240 Longwood Avenue, Boston, MA 02115, USA
2  Chemistry Department, International Research Laboratories,Ciba-Geigy Japan Ltd, P.O.Box 1, Takarazuka 665, Japan
3  Medicinal Chemistry Group, Research, Novartis Pharma K.K., 10-66, Miyuki-cho, Takarazuka, 665 Japan

Abstract: A catalytic amount of trimethylsilyl triflate (TMSOTf) remarkably facilitated the selective conjugate addition of a variety of silyl phosphites, prepared in situ from dialkyl phosphites and N,Obis( trimethysilyl)acetamide, to cyclic enones giving 1,4-adducts in high yields.
Keywords: n/a

 
 
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