| 摘要 |
<p>1529150 Alkyl substituted cyclic alkyltetramines I TABUSHI 7 Sept 1977 [17 May 1977 19 May 1977 (2)] 37243/77 Heading C2C [Also in Division C7] The invention comprises alkyl substituted cyclic alkyltetramines resulting from substitution of one or more ring hydrogens of the skeleton represented by the general formula I wherein R 1 , R 2 , R 3 and R 4 are (-CH 2 -) 2 or (-CH 2 -) 3 whereby alkyl groups containing at least 8 carbon atoms. The compounds of Formula I may be prepared by: in the first place the cyclic alkyl tetramine skeletons are synthesized by condensation-reacting those compounds having -NH 2 or -NHX (wherein X is sulphenyl, acyl or the like) at the both ends thereof and those compounds having -Cl, -Br, -I, -COOH, -COOR (wherein R is alkyl or aryl), or -SO 3 R (wherein R is alkyl or aryl) at the both ends thereof, in one step or two steps. Next, introduction of alkyl groups as substituents is carried out by reacting those compounds being subjected to the above condensation reaction or amide compounds obtained by the condensation reaction with alkyl halide and the like.</p> |
