Selective reduction of aldehydes via BINOL–Zr complex
摘要:
An easily assembled catalyst from (+/-)-BINOL (1,1 ' -bi-naphthol) and Zr(O ' Pr)(4). ' PrOH selectively reduces aldehydes at room temperature. Ketones remain intact under these conditions. A catalytic amount of BINOL-Zr complex in the presence of 2-propanol also effectively reduces a variety of chiral and achiral aldehydes. (C) 2001 Published by Elsevier Science Ltd.