Heterocycles with a bridging nitrogen atom. 19. Development of routes for the synthesis of oxazoloisoquinolinium salts based on phenacylation of α-methyl-1(3)-isoquinolones
作者:E. V. Babaev、A. A. Nevskaya、I. V. Dlinnykh、V. B. Rybakov
DOI:10.1007/s10593-009-0231-9
日期:2009.1
Alkylation of 3-methyl-1-isoquinolone and 1-methyl-3-isoquinolone with phenacyl bromides proceeds regioselectively with the formation in the first case of only an N-phenacyl derivative and in the second only the O-derivative. The 5-methyl[1,3]oxazolo[3,2-a]isoquinolinium salt has been synthesized and its reactions with ammonia, morpholine, and sodium methylate have been investigated.
3-甲基-1-异喹诺酮和1-甲基-3-异喹诺酮与苯甲酰基溴的烷基化在第一种情况下仅形成N-苯甲酰基衍生物,而在第二种情况下仅形成O-衍生物。合成了5-甲基[1,3]恶唑并[3,2- a ]异喹啉盐,并研究了其与氨,吗啉和甲醇钠的反应。