Asymmetric cyclization of substituted 4-pentenals (Ia,b,c; IIa,b,c,d) by Rh(I) with chiral ligands was tested, and substrate (IId) with a bulkier substituent at C4 underwent more stereoselective cyclization by Rh(I)-((+)-DIPMC) to yield substituted cyclopentanone (IIId). The Rh(I) with (+)-DIPMC was found to proceed in a different manner from the Wilkinson-catalyzed cyclization.
机构:
SANKYO CO LTD, CENT RES LABS, 1-2-58 HIROMACHI, SHINAGAWA KU, TOKYO 140, JAPANSANKYO CO LTD, CENT RES LABS, 1-2-58 HIROMACHI, SHINAGAWA KU, TOKYO 140, JAPAN
INOUE, K
SAKAI, K
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SANKYO CO LTD, CENT RES LABS, 1-2-58 HIROMACHI, SHINAGAWA KU, TOKYO 140, JAPANSANKYO CO LTD, CENT RES LABS, 1-2-58 HIROMACHI, SHINAGAWA KU, TOKYO 140, JAPAN
机构:
SANKYO CO LTD, CENT RES LABS, 1-2-58 HIROMACHI, SHINAGAWA KU, TOKYO 140, JAPANSANKYO CO LTD, CENT RES LABS, 1-2-58 HIROMACHI, SHINAGAWA KU, TOKYO 140, JAPAN
INOUE, K
SAKAI, K
论文数: 0引用数: 0
h-index: 0
机构:
SANKYO CO LTD, CENT RES LABS, 1-2-58 HIROMACHI, SHINAGAWA KU, TOKYO 140, JAPANSANKYO CO LTD, CENT RES LABS, 1-2-58 HIROMACHI, SHINAGAWA KU, TOKYO 140, JAPAN