Microwave-assisted synthesis of azetidines in aqueous media
摘要:
Simple azetidines are synthesized in good to excellent yields and high purity via cyclization of 3-(ammonio nio)propyl sulfates derived from primary amines and the cyclic sulfate of 1,3-propanediol. A feature of this methodology includes the accelerated synthesis of azetidines in water under the influence of microwave-assisted heating. (C) 2009 Elsevier Ltd. All rights reserved
Microwave-assisted synthesis of azetidines in aqueous media
摘要:
Simple azetidines are synthesized in good to excellent yields and high purity via cyclization of 3-(ammonio nio)propyl sulfates derived from primary amines and the cyclic sulfate of 1,3-propanediol. A feature of this methodology includes the accelerated synthesis of azetidines in water under the influence of microwave-assisted heating. (C) 2009 Elsevier Ltd. All rights reserved
HYDROPHILIZING AGENT FOR PRODUCTION OF SELF-EMULSIFYING POLYISOCYANATE COMPOSITION, SELF-EMULSIFYING POLYISOCYANATE COMPOSITION, COATING MATERIAL COMPOSITION, AND COATING FILM
申请人:Tosoh Corporation
公开号:EP3760657A1
公开(公告)日:2021-01-06
The present invention relates to a hydrophilizing agent for producing a self-emulsifying polyisocyanate composition, the hydrophilizing agent comprising an anionic compound represented by the following formula (1):
wherein X represents a sulfo group or a hydroxysulfonyloxy group, R1 represents a straight-chain or branched alkylene group, and R2 represents a straight-chain or branched alkyl group; the total number of carbon atoms included in R1 and R2 is 6 or more and less than 14, and one or two or more carbon atoms in the groups R1 and R2 are optionally replaced with an oxygen atom(s).
Microwave-assisted synthesis of azetidines in aqueous media
作者:Brendan A. Burkett、Samuel Z. Ting、Gwendolyn C.S. Gan、Christina L.L. Chai
DOI:10.1016/j.tetlet.2009.09.063
日期:2009.11
Simple azetidines are synthesized in good to excellent yields and high purity via cyclization of 3-(ammonio nio)propyl sulfates derived from primary amines and the cyclic sulfate of 1,3-propanediol. A feature of this methodology includes the accelerated synthesis of azetidines in water under the influence of microwave-assisted heating. (C) 2009 Elsevier Ltd. All rights reserved