Studies on quinazolines 7*. Alkylation of 2-aryl-4,4-diphenyl-3,4-dihydroquinazolines with methyl iodide
作者:Elena V. Gromachevskaya、Elena А. Kaigorodova、Leonid D. Konyushkin、Gennady D. Krapivin
DOI:10.1007/s10593-018-2363-2
日期:2018.9
The reaction of 2-aryl-4,4-diphenyl-3,4-dihydroquinazoline with methyl iodide in acetone in the presence of potassium hydroxide at 40°C leads to the formation of the corresponding 1-methyl-4,4-diphenyl-1,4-dihydroquinazolines and 1,3-dimethyl-4,4-diphenyl-1,4-dihydroquinazolin-3-ium iodides. The structure of 2-(7-methoxy-1,3-benzodioxol-5-yl)-1-methyl-4,4-diphenyl-1,4-dihydroquinazoline was established
2-芳基-4,4-二苯基-3,4-二氢喹唑啉与甲基碘在丙酮中在氢氧化钾的存在下于40°C的反应导致形成相应的1-甲基-4,4-二苯基- 1,4-二氢喹唑啉和1,3-二甲基-4,4-二苯基-1,4-二氢喹唑啉-3-碘化物。通过异核相关NMR光谱法确定了2-(7-甲氧基-1,3-苯并二恶唑-5-基)-1-甲基-4,4-二苯基-1,4-二氢喹唑啉的结构。