552,454. Aryloxy-alkylamino butanones. GEIGY AKT.-GES., J. R. Oct. 7, 1941, No. 12937. Convention date, Oct. 8, 1940. [Class 2 (iii)] Aryloxy-alkylamino butanones are prepared by first condensing a monovalent phenol or a derivative of a polyvalent phenol containing only one hydroxyl group with a monohalogen acetone and then treating the aryloxy acetone so produced with a hydroxymethylamine, In place of the hydroxymethylamine there may be employed the reaction mixture obtained from formaldehyde and a primary or a secondary amine. The butanones thus obtained may be reduced to the corresponding butanols. In examples (1) Monochloracetone is condensed with o-cresol in the presence of sodium hydroxide and the o-cresoxyacetone so produced treated with the crude condensation product obtained by reacting piperidine with formaldehyde. The resulting o-cresoxybutanonyl-piperidine 1- (2<;SP>;1<;/SP>; - methylphenoxy - 1') - 4 - piperidyl - butanone-2 is purified by distillation. (2) A benzene solution of o-cresoxyacetone is treated with diethylamine to give 1-(2<;SP>;1<;/SP>;-methyl-phenoxy- 1<;SP>;1<;/SP>;) - 4 - diethylaminobutanone - 2. Similarly using #-naphthol in place of cresol the corresponding #-naphthoxy compound is obtained. (3) Guaiacoxy-acetone from guaiacol and monochloracetone is reacted with the crude condensation product of formaldehyde and piperidine to give 1-(2<;SP>;1<;/SP>;-methoxyphenoxy-1<;SP>;1<;/SP>;)-4- piperidyl-butanone 2. (4) The condensation product of morpholine and formaldehyde is reacted with methoxyphenoxy-acetone to give 1 - (21 - methoxyphenoxy - 1<;SP>;1<;/SP>;) - 4 - morpholinyl - butanone-2. (5) o-Benzyloxyphenoxy acetone prepared by treating pyro-catechine mono-benzyl ether with monochloracetone in the presence of sodium hydroxide is added to a cold mixture of piperidine, formaldehyde, benzene and sodium chloride to give 1-(21-benzyloxyphenoxy)-4-piperidyl-butanone-2. The free amino phenol may be obtained by acid hydrolysis. (6) Benzyloxyphenoxy acetone is added to the reaction mixture of methylcyclohexylamine and formaldehyde and worked up as in example (5) to give 1-(2'-benzyloxyphenoxy) - 4 - (methylcyclohexylamino) - butanone-2. The free amino-phenol is obtained by acid hydrolysis. (7) o-Benzyloxyphenoxyacetone prepared as in example (5) are added to a benzene solution of morpholine, formaldehyde and sodium chloride to give 1-(21- benzyloxyphenoxy-1<;SP>;1<;/SP>;)-4-morpholinyl-butanone- 2. The amino ketone is reduced by sodium in alcohol to form 1-(2<;SP>;1<;/SP>;-hydroxyphenoxy- 1<;SP>;1<;/SP>;)-4-morpholinyl-butanone-2. (8) Phenoxyacetone in benzene solution is added to morpholine and formaldehyde to form 1- phenoxy-4-morpholinyl-butanone-2. The corresponding 1 - phenoxy - 4 - morpholinyl - butanol-2 is obtained by reduction of the ketone by sodium in alcohol.;/SP>;SP>;/SP>;SP>;/SP>;SP>;/SP>;SP>;/SP>;SP>;/SP>;SP>;/SP>;SP>;/SP>;SP>;/SP>;SP>
552,454. 乙氧基-烷基氨基丁酮。GEIGY AKT.-GES.,J.R. 1941年10月7日,第12937号专利。公约日期,1940年10月8日。[第2类(iii)] 乙氧基-烷基氨基丁酮首先通过将一价酚或仅含有一个羟基的多价酚衍生物与一卤代丙酮缩合,然后用羟甲基胺处理生成的乙氧基丙酮来制备。在羟甲基胺的位置上,也可以使用由甲醛和一级或二级胺得到的反应混合物。所得的丁酮可以还原为相应的丁醇。在示例中(1)单氯代丙酮与邻甲酚在氢氧化钠存在下缩合,然后用通过对哌啶与甲醛反应得到的粗缩合产物处理所产生的邻甲氧基丙酮。通过蒸馏纯化得到的邻甲氧基丁酰基哌啶1-(2'-甲基苯氧-1')-4-哌啶基-丁酮-2。 (2)邻甲氧基丙酮的苯溶液与二乙胺反应生成1-(2'-甲基苯氧-1')-4-二乙基氨基丁酮-2。类似地,使用α-萘酚代替甲酚可得到相应的α-萘氧化合物。 (3)从愈创木酚和单氯代丙酮得到的愈创氧基丙酮与甲醛和哌啶的粗缩合产物反应,得到1-(2'-甲氧苯氧-1')-4-哌啶基-丁酮2。 (4)吗啉和甲醛的缩合产物与甲氧苯氧基丙酮反应,得到1-(2'-甲氧苯氧-1')-4-吗啉基-丁酮-2。 (5)通过将苯并二苯基醚与单氯代丙酮在氢氧化钠存在下反应制备的邻苯氧基丙酮添加到哌啶、甲醛、苯和氯化钠的冷混合物中,得到1-(2'-苯氧苯氧)-4-哌啶基-丁酮-2。通过酸水解可以得到游离氨基酚。 (6)苯氧基丙酮添加到甲基环己胺和甲醛的反应混合物中,并按照示例(5)的方法处理,得到1-(2'-苯氧苯氧)-4-(甲基环己基氨基)-丁酮-2。通过酸水解可以得到游离氨基酚。 (7)如示例(5)中制备的邻苯氧基丙酮添加到吗啉、甲醛和氯化钠的苯溶液中,得到1-(2'-苯氧苯氧-1')-4-吗啉基-丁酮-2。氨基酮通过酒精中的钠还原形成1-(2'-羟基苯氧-1')-4-吗啉基-丁酮-2。 (8)苯氧基丙酮在苯中加入吗啉和甲醛,形成1-苯氧基-4-吗啉基-丁酮-2。通过酒精中的钠还原酮可以得到相应的1-苯氧基-4-吗啉基-丁醇-2。