Organoaluminium compounds and their use as catalysts in the selective cyclisation of citronellal to isopulegol
申请人:Takasago International Corporation
公开号:EP2390001A1
公开(公告)日:2011-11-30
A catalyst for obtaining isopulegol of high diastereoselectivity by highly selective cyclization reaction of citronellal is provided. The present invention relates to an organoaluminum compound obtained by reacting at least one organoaluminumoxy compound selected from the group consisting of chain aluminoxanes, cyclic aluminoxanes and bis(dialkylaluminumoxy)alkylboranes, with at least one hydroxy compound selected from the group consisting of diarylphenols, bis(diarylphenol) compounds, biaryldiols, dimethanols and silanols.
本发明提供了一种通过香茅醛的高选择性环化反应获得高非对映选择性异普来醇的催化剂。本发明涉及一种有机铝化合物,该化合物是由至少一种选自链状铝氧烷、环状铝氧烷和双(二烷基铝氧)烷基硼烷的有机铝氧化合物与至少一种选自二芳基苯酚、双(二芳基苯酚)化合物、双芳基二醇、二甲醇和硅烷醇的羟基化合物反应得到的。