— 136 — 



melting point of the hydrochloride 160 . The formyl compound is 

 formed without adding acetic acid. Boiling point 200 at 14 mm. 

 pressure. 



Cy cl o dih exyl am ine NH(C 6 H 11 ) 2 from cyclohexanone, ammonium 

 formate, and acetic acid at 120 to 130 ; boiling point 251 to 2 5 2°, 

 d 0,925; n Di8° 1,4861; nitrosamine, melting point 105 to 106 . 



/CH 2 C 6 H 5 



Benzylcyclohexylamine NH<^ from cyclohexanone, 



^6 n ll 



benzylamine, and formic acid, at 150 ; b. p. 281 to 282 . 



Dicyclomethylhexylamine NH (C 6 H 10 CH 3 ) 2 from methyl 

 hexanone, ammonium formate, and formic acid at 120 to 130 , boiling 

 point 134 to 135 at 12 to 14 mm. pressure, at atmospheric pressure 

 in a current of hydrogen 273 ; d 0,8878; n D2i°i;475 - 



The base is a mixture of stereo -isomeric compounds. The same 

 mixture was also, in conformity with the theory, obtained from 

 methylcyclohexanone, methylcyclohexylamine, and formic acid at 1 5o°. 



/ C 5 H ll 



Amylmethylcyclohexylamine NH<^ from amyl- 



amine, methylhexanone, and formic acid at 150 ; boiling point 234 ; 



/CH 2 C 6 H 5 

 Benzylmethylcyclohexylamine NH<^ from ben- 



C 6 H 10 • C H 3 

 zylamine, methylhexanone, and formic acid at 150 ; boiling point 165 

 to 170 at 12 mm. pressure; d 0,946; n D22° 1,5182. The same base 

 was also obtained from benzaldehyde, methylcyclohexylamine formate, 

 and formic acid, at 160 . 



Formylmenthylamine C 10 H 19 NH • CHO from menthone, am- 

 monium formate, and glacial acetic acid, at 175 to 185 . The tempera- 

 ture of conversion is so high in this case, that the formyl compound 

 is formed from the formate produced primarily. 



Triisoamylamine (C 5 H 11 ) 3 N from valeric aldehyde, ammonium 

 formate, and formic acid, at 90 to 130 ; boiling point 265 to 270 . 



Tribenzylamine (C 6 H 5 CH 2 ) 3 N, from benzaldehyde, ammonium 

 formate and formic acid at 13 5 ; melting point 91 . 



Diamylaniline (C 5 H 11 ) 2 N • C 6 H 5 from valeric aldehyde, aniline 

 formate, and formic acid at 70 to ioo°, and then 105 to no°; boiling 

 point 264 to 265 . 



Methylamylaniline (CH 3 ) (C 5 H u ) N • C 6 H 5 from valeric alde- 

 hyde, methyl aniline and formic acid at 1 1 o°. 



