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Dive into the research topics where Charles K.-F. Chiu is active.

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Featured researches published by Charles K.-F. Chiu.


Tetrahedron-asymmetry | 1996

A PRACTICAL SYNTHESIS OF 3(S)-METHYL-HEPTANOIC ACID FROM (S)-CITRONELLOL

Ralph Breitenbach; Charles K.-F. Chiu; Stephen S. Massett; Morgan Meltz; C.William Murtiashaw; Susan L. Pezzullo; Thomas Staigers

Abstract Chiral 3-methyl-heptanoic acid is readily accessible by functional group manipulation of optically active citronellol. In principle, this approach is general and could be applied to the synthesis of chiral 3-methyl-alkanoic acids seven carbon atoms in length and longer.


Synthetic Communications | 1996

An Improved Procedure for the Synthesis of Chiral 2-Aza-Bicyclo[2.2.1]heptane

Charles K.-F. Chiu

Abstract Griecos protocol for the synthesis of 2-aza-bicyclo[2.2.1]heptane is modified and adapted for large scale preparation. The optical purity of the material is readily upgraded by purification through a chiral salt.


Synthetic Communications | 2006

Scalable Process for 4‐(2‐Hydroxy‐2‐methyl)‐ethyl‐benzylamine

John L. Tucker; Michel Couturier; Michael J. Castaldi; Charles K.-F. Chiu; Detlef Gestmann

Abstract The preparation of the title compound has been revisited and improved. Starting from inexpensive cuminonitrile, 4‐(2‐hydroxy‐2‐methyl)‐ethyl‐benzylamine is obtained in a scalable two‐step process with an overall yield of 55%.


Journal of Organic Chemistry | 2006

Aqueous Phosphoric Acid as a Mild Reagent for Deprotection of tert-Butyl Carbamates, Esters, and Ethers

Bryan Li; Martin A. Berliner; Richard A. Buzon; Charles K.-F. Chiu; Stephen T. Colgan; Takushi Kaneko; Nandell F. Keene; William Kissel; Tung Le; Kyle R. Leeman; Brian Marquez; Ronald Morris; Lisa Newell; Silke Wunderwald; Michael Witt; John Weaver; and Zhijun Zhang; Zhongli Zhang


Archive | 1996

(-) cis-6(s)-phenyl-5(r)[4-(2-pyrrolidin-1-ylethoxy)phenyl]-5,6,7,8-tetrahydronaphthalen-2-ol d-tartrate

Charles K.-F. Chiu; Morgan Meltz


Organic Process Research & Development | 2002

An Optimized Process for Formation of 2,4-Disubstituted Imidazoles from Condensation of Amidines and α-Haloketones

Bryan Li; Charles K.-F. Chiu; Richard F. Hank; Jerry Anthony Murry; and Joshua Roth; Harry Tobiassen


Tetrahedron Letters | 2003

Aqueous phosphoric acid as a mild reagent for deprotection of the t-butoxycarbonyl group

Bryan Li; Raymond J. Bemish; Richard A. Buzon; Charles K.-F. Chiu; Stephen T. Colgan; William Kissel; Tung Le; Kyle R. Leeman; Lisa Newell; Joshua Roth


Organic Process Research & Development | 2005

Process Development of CP-481715, a Novel CCR1 Antagonist

Bryan Li; Brian M. Andresen; Matthew Frank Brown; Richard A. Buzon; Charles K.-F. Chiu; Michel Couturier; Eric Dias; Frank J. Urban; V. John Jasys; John Charles Kath; William Kissel; Tung Le; Z. Jane Li; Joanna Teresa Negri; Christopher Stanley Poss; John L. Tucker; David C. Whritenour; Kathleen Zandi


Archive | 2001

Process for Cis-1-{2-[4-(6-methoxy-2-phenyl-1,2,3,4-tetrahydronaphthalen-1-yl)phenoxy] ethyl}pyrrolidine

Charles K.-F. Chiu


Archive | 2000

Intermediates in a process for cis-1-{2-[4-(6-methoxy-2-phenyl-1,2,3,4-tetrahydronaphthalen-1-yl)phenoxy] ethyl}pyrrolidine

Charles K.-F. Chiu

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