作者:D. A. Skladchikov、A. A. Fatykhov、R. R. Gataullin
DOI:10.1134/s1070428012030086
日期:2012.3
and N-(2-bromo-4-methylphenyl)-4-methyl-3,6-dihydro-2H-pyran-3-amines which were converted into the corresponding amides by reaction with bromo- or chloroacetyl chloride. 1-4a,6-Dimethyl-4a,9a-dihydropyrano[3,4-b]indol-9(1H)-yl} ethanone was synthesized in good yield by heating N-(2-bromo-4-methylphenyl)-N-(4-methyl-3,6-dihydro-2Hpyran-3-yl)acetamide in boiling toluene in the presence of palladium(II)
的溴化产物的加热4-甲基-3,6-二氢-2 H ^ -吡喃在三乙胺4-甲苯胺或2-溴-4- methylamiline得到4-甲基- ñ - (4-甲基苯基) -和ñ - (2-溴-4-甲基苯基)-4-甲基-3,6-二氢-2 H-吡喃-3-胺,其通过与溴或氯乙酰氯反应转化为相应的酰胺。通过加热N-(2-溴-4-甲基苯基)以高收率合成1- 4a,6-二甲基-4a,9a-二氢吡喃并[3,4- b ]吲哚-9(1 H)-基}乙酮。- ñ - (4-甲基-3,6-二氢-2 ħ在乙酸钯(II),三苯膦,乙酸铜(II),三乙胺和碳酸钾的存在下,在沸腾的甲苯中生成吡喃-3-基)乙酰胺。