

SONOCHEMICAL SYNTHESIS OF 1',4'-DIALKYL-1',4',5',6'-TETRAHYDROPYRAZINO[2',3':1,9](C60-Ih)[5,6]FULLERENES

Abstract
For the first time, a selective and efficient method for the synthesis of 1',4'-dialkyl-1',4',5',6'-tetrahydropyrazino[2',3':1,9](С60-Ih)[5,6]-fullerenes (alkyl = methyl, ethyl, isopropyl) was developed based on the reaction of C60 fullerene with N-substituted ethylenediamines in PhMe–DMF medium effected by ultrasound.
Keywords
fullerene piperazine adducts; secondary acyclic diamines; [4+2] cycloaddition reactions of C60 fullerene; selective sonochemical reactions; ultrasound.
Latvian Institute of Organic Synthesis - Aizkraukles iela, 21, Riga, LV-1006, Latvia - hgs@osi.lv