Synthesis of macrocyclic azino and dihydrazido diesters by consecutive [2 + 1]- and [1 + 1]-condensations
摘要:
Efficient procedures for the synthesis of 21-24- and 28-31-membered macrocyclic azino diesters and dihydrazido diesters were developed starting from L-menthol, Delta(3)-carene, (+)-alpha-pinene, tetrahydropyran, and 4-methyltetrahydropyran. The key steps in these syntheses were consecutive [2 + 1]- and [1 + 1]-condensations. The 31-membered dihydrazido diester exhibited strong antibacterial activity.
Synthesis of symmetric macrocyclic diesterdihyrazides using successive [2+1]- and [1+1]-condensations
作者:G. Yu. Ishmuratov、G. R. Mingaleeva、M. P. Yakovleva、R. R. Muslukhov、E. M. Vyrypaev、S. P. Ivanov、A. G. Tolstikov
DOI:10.1007/s10600-010-9513-9
日期:2010.3
Potentially useful symmetric macrocyclic diesterdihydrazides were synthesized efficiently from available petrochemical products (tetrahydropyran and 4-methyltetrahydropyran) using successive [2+1]-condensation of 8-hydroxyoctan-2-one and its 6-methyl derivative with glutaric and adipic chlorides and [1+1]-condensation of the intermediate diketodiesters with glutaric dihydrazide.