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公开(公告)号:US06403845B1
公开(公告)日:2002-06-11
申请号:US09625487
申请日:2000-07-25
申请人: Joachim Pfeffinger , Peter Wahl , Jan Nouwen , Karsten Eller , Arthur Höhn , Jürgen Hunger
发明人: Joachim Pfeffinger , Peter Wahl , Jan Nouwen , Karsten Eller , Arthur Höhn , Jürgen Hunger
IPC分类号: C07C2700
CPC分类号: C07C29/132 , C07C29/141 , C07C31/20
摘要: are prepared by single-stage reaction of alkoxydihydropyrans of the formula (II) with water and hydrogen in the presence of a catalyst comprising oxides of nickel, zirconium and copper. In the formulae (I) and (II), R, R′, R″, R′″ can be identical or different and are each hydrogen or a linear or branched saturated hydrocarbon radical having from 1 to 20 carbon atoms in which the hydrocarbon chain may contain O, S and N as heteroatoms and which may be monosubstituted or polysubstituted by hydroxy, thiol or amino groups or halogens.
摘要翻译: 在式(I)和(II)的催化剂存在下,通过式(II)的烷氧基二氢吡喃与水和氢的单步反应制备。在式(I)和(II)中,R,R' R“,R”可以相同或不同,并且各自为氢或具有1至20个碳原子的直链或支链饱和烃基,其中烃链可以含有O,S和N作为杂原子,并且其可以是 被羟基,硫醇或氨基或卤素单取代或多取代。