Synthesis of 2,2'-bis- -oxazoline

Details Synthesis of 2,2'-bis- -oxazoline Synthesis of 2,2'-bis- -oxazoline

C - Chemistry, Metallurgy

07

C

260/304, 260/466

C07C 251/02 (2006.01) C07D 263/08 (2006.01) C07D 263/16 (2006.01)

Patent

CA 2006030

CASE 2979 "NEW SYNTHESIS OF 2,2'-BIS-.DELTA.2-OXAZOLINE" Abstract The present invention relates to a new method of synthesis of 2,2'-bis.DELTA.2-oxazoline, which consists of three steps: in the first step, N,N'-bis-(2-hydroxyethyl)-oxamide (I) is reacted with hydrogen chloride and a nitrile of formula RCN in which R = H, alkyl, aryl, arylalkyl, alkylaryl, in order to yield the corresponding N,N'-bis-(2-iminoacyloxyethyl)oxamide.2HCl (II). In the second step, the compound (II) is pyrolysed in order to yield N,N'-bis-(2-chloroethyl)oxamide (III) which in the third step generates, by means of the treatment with a base, the desired product 2,2'-bis-.DELTA.2-oxazoline.

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