Abstract:
A process for producing tetrahydropyran-4-ol, characterized by comprising: a cyclization step in which 3-buten-1-ol, a formaldehyde compound, and formic acid are reacted to form tetrahydropyranyl 4-formate, which is represented by the formula (1); (1) and a solvolysis step in which the tetrahydropyranyl 4-formate is solvoyzed to form tetrahydropyran-4-ol, which is represented by the formula (2).
Abstract:
【課題】過剰なヨウ素を使用することなく、工業的に好適な方法による、オキサビシクロオクタン化合物の製造方法の提供。 【解決手段】3−シクロヘキセン−1−カルボン酸と、式(2)のヨウ素酸及び/又はその塩、式(3)のヨウ化物、並びに酸(3−シクロヘキセン−1−カルボン酸を除く)を混合して混合液を得ることと、得られる混合液中で式(4)のオキサビシクロオクタン化合物を生成させることとを含む、オキサビシクロオクタン化合物の製造方法。 (A 1 はH又はアルカリ金属。) (A 2 はアルカリ金属。) 【選択図】なし
Abstract:
The present invention aims to produce a 2-imidazolidinone compound and a 4,5-dialkoxy-2-imidazolidinone compound by a simple method with high yield. Namely, disclosed is a method for commercially advantageously producing a 2-imidazolidinone compound and a 4,5-dialkoxy-2-imidazolidinone compound. Specifically disclosed is a method for producing a 2-imidazolidinone compound, which is characterized by reacting a 4,5-dialkoxy-2-imidazolidinone compound with hydrogen in the presence of a metal catalyst. Also specifically disclosed is a method for producing a 4,5-dialkoxy-2-imidazolidinone compound, which comprises a step for reacting a dicarbonyl compound, a urea compound and an alcohol in the presence of a solid acid catalyst.
Abstract:
A process for the production of 4-aminopyrimidines represented by the general formula (3) [wherein R 1 and R 2 are each hydrogen or an optionally substituted inert group, or R 1 and R 2 may be united to form a ring; and R 4 is hydrogen or a hydrocarbon group], characterized by conducting a reaction among ammonia, a 3-substituted or -unsubstituted acrylonitrile compound represented by the general formula (1): CR 1 (CN)=CR 2 Y [wherein R 1 and R 2 are each as defined above; and Y is amino or OR (wherein R is hydrogen or a hydrocarbon group)], and an organic acid compound represented by the general formula (2): (R 3 O) 3 CR 4 [wherein R 3 is a hydrocarbon group; and R 4 is as defined above].