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Acta Chimica Sinica ›› 1954, Vol. 20 ›› Issue (2): 108-117. Previous Articles Next Articles
纪育澧, 凌育宸
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CHI YUOH-FONG, LING YUOH-CHERN
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4-Methyl-5-ethyl-2-thiouracil reacts with ethyl bromide in alcoholic solution in presence of sodium ethylate, forming 2-ethylmercapto-4-methyl-5-ethyl-uracil (m. p. 141°),from which 2-ethylmercapto-4-methyl-5-ethyl-6-chloropyrimidine, boiling at 148-150° at 13 mm., at 164-166° at 17 mm., or at 180-185° at 25 mm., is prepared according to the directions given by Johnson and Bailey. This chloro-pyrimidine reacts with sodium methylate in methyl alcohol forming 2-ethyl-mercapto-4-methyl-5-ethyl-6-methoxypyrimidine, boiling at 152-154° at 11 mm., at 156-160° at 16.5 mm., or at 162° at 22 mm., and with sodium ethylate in ethyl alcohol forming 2-ethylmercapto-4-methyl-5-ethyl-6-ethoxypyrimidide, boiling at 139-140° at 5 mm,or 142-145° at 7 mm.
CHI YUOH-FONG, LING YUOH-CHERN. PYRIMIDINE RESEARCH:THE ACTION OF CHLORINE ON MERCAPTOPYRIMIDINES. SYNTHESIS OF 4-METHYL-5-ETHYL-CYTOSINE[J]. Acta Chimica Sinica, 1954, 20(2): 108-117.
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