2-Bromo-5-chloropyrimidine → HCID 178482372, Verbindung

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

In analogy to example 1.7, trans-3-(4-Methylamino-cyclohexyl)-prop-2-yn-1-ol and 1.5 equivalent of 2-Bromo-5-chloro-pyrimidine [synthesized from 5-chloro-2-hydroxy-pyrimidine in analogy to Brown, Desmond J.; Arantz, B. W., Pyrimidine reactions. XXII. Relative reactivities of corresponding chloro-, bromo-, and iodopyrimidines in aminolysis. J. Chem. Soc. C (1971), Issue 10, 1889–91] were heated for 0.5 h at 80° C., 1 h at 120° C., then 0.5 equivalent of 2-Bromo-5-chloro-pyrimidine were added and heated for 1 h at 120° C. to give after work up trans-3-{4-[(5-Chloro-pyrimidin-2-yl)-methyl-amino]-cyclohexyl}-prop-2-yn-1-ol, mp: 148–150° C., dec.; MS: 280 (MH+, 1Cl).

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