Cesar Colon
Schering-Plough
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Publication
Featured researches published by Cesar Colon.
Tetrahedron Letters | 2001
Xiaoyong Fu; Chou-Hong Tann; Tiruvettipuram K. Thiruvengadam; Junning Lee; Cesar Colon
Abstract A regioselective PCl 5 -induced dehydration of 11α-hydroxy corticosteroids was invented to provide the corresponding Δ 9,11 double bond trienes in excellent yield (>90%) with 99:1 regioisomeric ratio to the Δ 11,12 isomers. A syn -elimination mechanism was proposed for this reaction.
Synthetic Communications | 1999
Gaifa Lai; Cesar Colon
Abstract A one-pot, four-step procedure was developed for the efficient preparation of (S)-benzyl 4-hydroxy-2-pentynoate (1) from (S)-3-butyn-2-ol (2), which involved as a key step the unusual lithiation of the silyl ether 5 with n-BuLi in the presence of a catalytic amount of hexamethyldisilazane (HMDS).
Archive | 1994
Tiruvettipuram K. Thiruvengadam; Xiaoyong Fu; Chou-Hong Tann; Timothy Mcallister; John S. Chiu; Cesar Colon
Archive | 1992
Duane A. Burnett; John W. Clader; Tiruvettipuram K. Thiruvengadam; Chou-Hong Tann; Junning Lee; Timothy Mcallister; Cesar Colon; Derek H. R. Barton; Ronald Breslow; Sundeep Dugar; Wayne Vaccaro
Archive | 1995
Xiaoyong Fu; Tiruvettipuram K. Thiruvengadam; Chou-Hong Tann; Cesar Colon
Organic Process Research & Development | 2002
Xiaoyong Fu; Jianguo Yin; Tiruvettipuram K. Thiruvengadam; Timothy Mcallister; Chou-Hong Tann; Cesar Colon
Archive | 1993
Chou-Hong Tann; Tiruvettipuram K. Thiruvengadam; John S. Chiu; Cesar Colon; Michael D. Green
Archive | 1991
Chou-Hong Tann; Tiruvettipuram K. Thiruvengadam; John S. Chiu; Michael J. Green; Timothy Mcallister; Cesar Colon; Junning Lee
Archive | 1986
Chou-Hong Tann; Tiruvettipuram K. Thiruvengadam; John S. Chiu; Cesar Colon
Archive | 1995
Xiaoyong Fu; Tiruvettipuram K. Thiruvengadam; Chou-Hong Tann; Junning Lee; Cesar Colon
