中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1-(2-甲基苯氧基)-2-丙胺 | 1-(2-methylphenoxy)propan-2-amine | 59722-22-4 | C10H15NO | 165.235 |
—— | 2-methyl-1-o-tolyloxy-butan-2-ol | —— | C12H18O2 | 194.274 |
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>