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1. (WO2018135574) METHOD FOR PRODUCING N-(α-HYDROXYETHYL)FORMAMIDE AND METHOD FOR PRODUCING N-VINYLFORMAMIDE

Pub. No.:    WO/2018/135574    International Application No.:    PCT/JP2018/001367
Publication Date: Fri Jul 27 01:59:59 CEST 2018 International Filing Date: Fri Jan 19 00:59:59 CET 2018
IPC: C07C 231/12
C07C 231/24
C07C 233/05
C07C 233/18
C07B 61/00
Applicants: MITSUBISHI CHEMICAL CORPORATION
三菱ケミカル株式会社
Inventors: SOMEYA Yuuichi
染矢 雄市
TANAKA Akira
田中 彰
MORI Yasuharu
森 康治
Title: METHOD FOR PRODUCING N-(α-HYDROXYETHYL)FORMAMIDE AND METHOD FOR PRODUCING N-VINYLFORMAMIDE
Abstract:
A method for producing N-(α-hydroxyethyl)formamide which comprises reacting formamide with acetaldehyde in a solvent in the presence of a basic catalyst in a reaction vessel, precipitating the obtained N-(α-hydroxyethyl)formamide in the reaction vessel, and collecting the precipitated N-(α-hydroxyethyl)formamide from the reaction vessel. The production of N-(α-hydroxyethyl)formamide is conducted multiple times using the same reaction vessel so that an (n+1)th reaction is conducted in the reaction vessel in which crystals of the N-(α-hydroxyethyl)formamide obtained in the n-th reaction are present (n is a natural number).