PREPARATION OF ETHER
申请(专利)号： JP19790084686
专利号： JPS568338A 主分类号： B01J27/00
申请权利人： NISSO
PETROCHEMICAL IND CO LTD 公开国代码： JP 优先权国家： JP
摘 要：
PURPOSE:To prepare an alkylene glycol diether useful as a solvent free of active hydrogen atom, in high selectivity, by
reacting an ether with an alkylene oxide in the presence of boron fluoride catalyst and a specific amount of water. CONSTITUTION:An alkylene glycol diether having controlled oxyalkylene chain length distribution is prepared in high selectivity, suppressing the by-production of a cyclic dimer, by reacting (A) an ether compound containing one or more lower alkyl groups, pref. of formula I (R<1> is C1-2 alkyl; R<2> is C1-12 straight chain alkyl, etc.; m is an
integer of 1-4; n is an integer of 0-8) with
申请日： 1979-07-04 公开公告日： 1981-01-28
分类号： B01J27/00;
C07B61/00; C07C41/00; C07C41/02; C07C41/30; C07C43/10; C07C43/11; C07C43/164; C07C43/20; C07C43/303; C07C67/00 发明设计人： KOKOMA KIYOSHI;
OOHASHI YUU; NIIZEKI JIROU 申请国代码： JP
优先权： 19790704 JP
8468679
摘 要 附 图：
(B) an alkylene oxide pref. of formula II or III (R<3> is C1-5 straight chain alkyl, etc. which may be substituted with halogen; n' is an integer of 0-5),
especially ethylene oxide, in the presence of (C) a boron fluoride catalyst and (D) 0.1-10mol, pref. 0.2-5mol, based on 1mol of the catalyst, of water. 主权项：
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PREPARATION OF ETHER
