ortho-Halogeno Substituents Effect in Asymmetric Cyclization of 4-Aryl-4-pentenals Using a Rhodium Catalyst
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Asymmetric cyclization of 4-aryl-4-pentenals by using a cationic [Rh((R)-BINAP)]ClO<SUB>4</SUB> afforded (3R)-3-substituted cyclopentanones; on the other hand, the cyclization of 4-pentenals bearing ortho-halogeno phenyl groups afforded the opposite (3S)-ones.
- Chemistry Letters
Chemistry Letters 1998(9), 881-882, 1998-09-05
The Chemical Society of Japan