アルキルビニルエーテルおよびその誘導体を利用する諸反応について (第2報)
グアニジン, グアニジン誘導体, および尿素などの1,1,3,3-Tetraalkoxypropaneとの反応
1962 年 82 巻 3 号 p. 445-446
詳細
1962 年 82 巻 3 号 p. 445-446
Reaction of 1, 1, 3, 3-tetraalkoxypropane with guanidine salts and N1-amidino-N4-acetylsulfanilamides afforded 2-aminopyrimidine and N1-2-pyrimidinylsulfanilamide. The reaction of the former substances was carried out with alcohols as the solvent and saturation of hydrogen chloride in the cold. The latter reaction was carried out with glacial acetic acid as the solvent and by heating the solution of two reactants over a long period. The reaction of 2 moles of urea and 1, 1, 3, 3-tetraalkoxypropane in the presence of dil. hydrochloric acid with heating was found not to give a single substance.
