Development of novel chiral urea catalysts for the hetero-Michael reaction

Chemical and Pharmaceutical Bulletin

Volumn 52, Issue 4, 2004, Pages 477-480

  Sohtome, Yoshihiro ^a   Tanatani, Aya ^a   Hashimoto, Yuichi ^a   Nagasawa, Kazuo ^a  

^a UNIVERSITY OF TOKYO   (Japan)

Author keywords

Chiral urea catalyst; Hetero Michael reaction; Organoctatalyst

Indexed keywords

UREA; UREA DERIVATIVE; BUTENOLIDE; DRUG DERIVATIVE; DYES, REAGENTS, INDICATORS, MARKERS AND BUFFERS; FURAN DERIVATIVE; GAMMA BUTYROLACTONE; PYRROLIDINE DERIVATIVE;

ARTICLE; CATALYST; CHEMICAL ANALYSIS; CHEMICAL STRUCTURE; CHIRALITY; MICHAEL ADDITION; STRUCTURE ANALYSIS; SYNTHESIS; CATALYSIS; CHEMISTRY; HALF LIFE TIME; INFRARED SPECTROPHOTOMETRY; KINETICS; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; STEREOISOMERISM;

4-BUTYROLACTONE; CATALYSIS; FURANS; HALF-LIFE; INDICATORS AND REAGENTS; KINETICS; MAGNETIC RESONANCE SPECTROSCOPY; PYRROLIDINES; SPECTROPHOTOMETRY, INFRARED; STEREOISOMERISM; UREA;

EID: 3042688654     PISSN: 00092363     EISSN: 13475223     Source Type: Journal    
DOI: 10.1248/cpb.52.477     Document Type: Article

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27. 22)
28. The ee values of 4 were determined by HPLC using a Chiralpak AD-H column. The absolute configuration of 4 is under investigation.