Procedure for the obtaining of 3 ', 4', 5'-trimetoxy-3-aminoacrilofenona. (Machine-translation by Google Translate, not legally binding)
Реферат: "Process for the preparation of 3 ', 4', 5'-trimethoxy-3-amino-acrylophenones" of formula I, ** (See formula) ** or the tautomers thereof, wherein R is hydrogen, lower alkyl, lower alkenyl or cycloalkyl; R 'is lower alkyl, lower alkenyl or cycloalkyl; or R and R 'together in the group (see formula) consisting of pyrrolidino, δ 3-pyrrolino, piperidino, morpholino or hexamethylenesimino; and when R is hydrogen then R 'is OR "where R" is low alkyl, low alkenyl or arylmonocyclic, characterized in that a compound of formula II ** (See formula) ** wherein M is an alkali metal, it is reacted with an amine salt of formula III, ** (See formula) ** wherein HX is a mineral acid and R and R 'equals the definition given above. (Machine-translation by Google Translate, not legally binding)
PROCESS FOR THE PREPARATION OF A COMPOUND OF 3,3-DI-REPLACED Phthalides;
Номер патента: BR7706358A. Автор: P Schmidt,N Crounse. Владелец: Sterling Drug Inc. Дата публикации: 1978-06-06.