公开(公告)号：US06656328B2

公开(公告)日：2003-12-02

申请号：US10070877

申请日：2002-03-05

Applicant: Syunsaku Kato ,  Daisuke Suzuki ,  Yoshiko Seo

Inventor： Syunsaku Kato ,  Daisuke Suzuki ,  Yoshiko Seo

IPC: C07C3700

CPC classification number: C07J1/0077 ,  C07B41/02 ,  C07C37/055 ,  C07C2603/42 ,  C07D213/69 ,  C07D309/30 ,  C07J1/00 ,  C07J1/0055 ,  C07J1/007 ,  Y02P20/55 ,  C07C39/14 ,  C07C39/12 ,  C07C39/10

Abstract: A process for preparing a polyhydric alcohol according to the invention comprises subjecting a polyhydric alcohol compound having protected hydroxy group(s) to microwave irradiation in the presence of basic compound(s) or acid(s) having an acid dissociation exponent (pKa) of −8 to 3 at 25° C. to remove the protecting groups of the hydroxy group of the polyhydric alcohol compound. The invention can provide an industrially advantageous process for preparing polyhydric alcohols by readily removing protecting group(s) from protected hydroxy group(s) of polyhydric alcohol compounds.