PROCESS FOR PRODUCTION OF 4-AMINOTETRAHYDROPYRANS AND SALTS THEREOF WITH ACIDS, INTERMEDIATES FOR THE PROCESS, AND PROCESS FOR PRODUCTION THEREOF
申请人:Ube Industries, Ltd.
公开号:EP1661894A1
公开(公告)日:2006-05-31
The present invention relates to a process for preparing 4-aminotetrahydropyran compound and an acid salt thereof represented by the formula (2):
wherein R represents a hydrogen atom or a hydrocarbon group,
which comprises subjecting a 4-hydrazinotetrahydropyran compound or an acid salt thereof represented by the formula (1) :
wherein R has the same meaning as defined above, to decomposition reaction in the presence of at least one compound selected from Raney nickel, noble metal catalyst and metal oxide, and a synthetic intermediate thereof and a process for preparing the same.
本发明涉及一种制备由式(2)表示的 4-氨基四氢吡喃化合物及其酸盐的工艺:
其中 R 代表氢原子或烃基、
其中 R 代表氢原子或烃基,该工艺包括将式(1)代表的 4-肼基四氢吡喃化合物或其酸 盐:
其中 R 的含义与上述定义相同,在至少一种选自雷尼镍、贵金属催化剂和金属氧化物的化合物存在下进行分解反应,以及其合成中间体和制备方法。