中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-十七烷基-1,4,5,6-四氢嘧啶 | 2-heptadecyl-1,4,5,6-tetrahydropyrimidine | 88097-26-1 | C21H42N2 | 322.578 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-十七烷基-1,4,5,6-四氢嘧啶 | 2-heptadecyl-1,4,5,6-tetrahydropyrimidine | 88097-26-1 | C21H42N2 | 322.578 |
—— | 2-heptadecyl-5-methyl-4,5-dihydro-1H-imidazole | 121816-74-8 | C21H42N2 | 322.578 |
—— | 1-<2-Cyan-aethyl>-2-heptadecyl-4,5-dihydro-1H-imidazol | 27243-34-1 | C23H43N3 | 361.615 |
Imidazolines substituted in the 2-position are obtained by condensing N : N1-ethyleneurea, or an N : N1-ethyleneurea substituted at a carbon atom by a hydrocarbon radicle, with a monocarboxylic acid other than formic acid, the reaction occurring with elimination of water and carbon dioxide. In a typical example, N : N1-ethyleneurea and oleic acid, heated to 280-300 DEG C., yield 2-heptadecenyl-imidazoline. Examples are given also of the manufacture of imidazolines from N : N1-ethyleneurea and stearic acid, palmitic acid, benzoic acid, butyric acid, a - and b -naphthoic acids, diphenyl-4-carboxylic acid, carbazole-2-carboxylic acid, and an acid (molecular weight 238) obtained by the oxidation of paraffin. In a further example, N : N1-propylene urea is heated with benzoic acid to yield a mixture of 4- and 5-methyl-2-phenylimidazolines. Carbazole-2-carboxylic acid is obtainable by fusing 2-chloracetyl-N-acetylcarbazole with caustic potash.
The invention comprises compounds of the formula <;FORM:0785373/IV (a)/1>; wherein R is a -(CH2)6- or <;FORM:0785373/IV (a)/2>; group and R2 is hydrogen, alkyl, aryl or aralkyl. It comprises also a process for the preparation of compounds of the formula <;FORM:0785373/IV (a)/3>; wherein X is O, S, NH or NR3 (R3 is an alkyl, aryl or aralkyl group), by reacting a compound of the formula R1OCC-R2, wherein R1 is an alkyl group, with a compound of the formula H2N-R-XH. The reaction is suitably carried out by allowing an alkoxyacetylene, such as an ethoxyacetylene compound, to react with an aminoalcohol, a diamine or a mercaptoamine. Examples describe the preparation according to the above process of (1) 2-methyl-oxazoline; (2) 2 : 4-dimethyl-oxazoline; (3) 2-methylimidazoline; (4) 2-methylbenzimidazole; (5) 2-methylthiazoline; (6) 2-methyl-1-dodecylimidazoline-2; (7) 2-propyl-imidazoline-2; (8) 2-benzylimidazoline-2; (9) 2-methyl- D 2-dihydro-oxazine - 1 : 3; (10) 2 - methyl - 3 : 4 : 5 : 6 - tetrahydropyrimidine; (11) 2-methyl-4 : 5-benzooxazine-1 : 3; (12) 2-methyl-5 : 6-dihydro-1 : 3-thiazine; (13) 2-(1-naphthylmethyl)-2-imidazoline; (14) 2-heptadecyl-2-imidazoline; (15) 2-methyl - 4 : 5 : 6 : 7 - tetrahydro - 1 : 3 - diazepine and (16) 2-methyl-4 : 5 : 6 : 7 : 8 : 9-hexahydro-1 : 3-oxazonine.;FORM:0785373/IV>;FORM:0785373/IV>;FORM:0785373/IV>