PROCESS OF PREPARATION OF ALKYLIMIDAZOLIDONE (METH)ACRYLATES

• Main Authors: RIONDEL, ALLEN, LEVRAY, ANDRE, HERBST, GILLES
• Format: Patent
• Language: English; Korean
• Published: 16.11.1998
• Edition: 6
• Subjects: APPARATUS THEREFOR; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; GENERAL METHODS OF ORGANIC CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

본 발명은 (a) 하나 이상의 마그네슘 알콕시드 및 (b)1,3-디카르보닐 화합물, 디알킬틴 옥시드, 디알킬틴 알콕시드 및 디알킬틴 디에스테르와의 칼슘 킬레이트 화합물에서 선택된 성분으로 형성된 혼합물로 구성된 촉매의 존재하에, 하기 실(Ⅱ)의 (메트)아크릴레이트 하나 이상을 하기 식(Ⅲ)의 헤테로시클릭 알콜과 반응시킴으로써, 하기 식(Ⅰ)화합물의 제조하는 방법에 관한 것이다. [식중, - R은 수소 또는 메틸을 나타내고; - R은 C∼C알킬기를 나타내고; - A및 B는 탄소 원자수 2∼5의 직쇄 또는 분지쇄 탄화수소 사슬을 나타낸다]. Prepn. of N-alkyl-diazone methacrylate derivs. of formula (I) comprises reacting H2C=CR1-C(O)O-R2 with a heterocyclic alcohol of formula (III) in the presence of a catalyst comprising at least one magnesium alkoxide and calcium chelated with a 1,3-dicarbonyl cpd., a tin dialkyl oxide, tin dialkyl alkoxide or a tin dialkyl diester. R1 = H or CH3; A, B = 2-5C hydrocarbon chain; R2 = H or 1-4C alkyl. The reaction is pref. carried out at 75-105 degrees C for 3-15 hrs. (not exceeding atmospheric pressure). A polymerisation inhibitor such as phenothiazine, hydroquinone methyl ether, di-t-butyl catechol, hydroquinone, p-anilinophenol and/or p-phenylenediamine can be added.