FIELD: chemical technology.
SUBSTANCE: invention relates to a method for preparing mixture of (Z)- and (E)-isomers of adjoin in the ratio 2:1. Solution of synthetic illicit in n-butanol is kept for 6 days at temperature 21-23oC followed by, if necessary, separation of isomers by method of preparative HPLC.
EFFECT: improved preparing method.
1 tbl, 1 dwg, 1 ex
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