Title: Z'Z'-di-delta to the power 2-oxazoline synthetic process
Application Number: 92108554 Application Date: 1992.09.15
Publication Number: 1084168 Publication Date: 1994.03.23
Approval Pub. Date: Granted Pub. Date: 1997.05.07
International Classifi-cation: C07D263/16,C07D413/04
Applicant(s) Name: Shanghai Petro-chemical Plant. (Gen.), China Petro Address: 200540
Inventor(s) Name: Ye Cuiyuan, Wu Yunqiu
Attorney & Agent: YUAN MINGCHANG WANG QINGQIN
Abstract:
     Process to prepare 2,2'-bis- delta (2)-oxazoline by cyclization reaction of bis-beta-chloroethyl oxamide features that cyclization reaction takes place in alkaline methanol or alcohol solution, with the addition of dewatering agent selected from the group consisting of CaCl2, CaSO4, Na2SO4, CuSO4, P2O5 and CaO (preferably, CaO). For the available processes, a recrystalization method for refining is disclosed to obtain the quality same product.
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