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10
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0020540931
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(1983)
Biochem. Pharmacol
, vol.32
, pp. 1211
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-
Zimmerman, T.P.1
Deeprose, R.D.2
Solberg, G.3
Stopford, C.R.4
Duncan, G.S.5
Miller, W.H.6
Miller, R.L.7
Lim, M.‐I.8
Ren, W.‐Y.9
Klein, R.S.10
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13
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84986485606
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German Patent 1,005,007
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15
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84986434220
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British Patent 837,086, Farbwerke Hoechst Akt.‐Ges. vorm Meister Lucius and Bruning
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17
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84986434233
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The synthesis of various thieno[3,2‐d]pyrimidines from their most common precursors, the 3‐amino‐2‐carbalkoxythiophenes is described in the following:, Bull. Soc. Chim. France
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(1970)
, pp. 3630
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Robba, M.1
Lecomte, J.‐M.2
Cugnon de Sevricourt, M.3
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21
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84986494523
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[e]
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(1968)
Ann. Chem.
, vol.713
, pp. 143
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24
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0004271085
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The reaction of acetylenes with nucleophiles has been reviewed:, S. Patai, ed, John Wiley and Sons, Chichester, England,. For specific examples of nucleophilic addition of Selenols and Thiols, see
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(1978)
Chemistry of the Carbon‐Carbon Triple Bond
, vol.2
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Dickstein, J.I.1
Miller, S.I.2
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27
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84945078929
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Polyacetylenverbindungen, LX. Über die Kondensation von Acetylencarbonsäureestern mit Mercaptanen
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[d] Cyclization of adducts obtained from α‐mercaptoacetates and α‐mercaptoketones with acetylenecarboxylic esters to give 3‐OH substituted thiophenes has been reported
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(1964)
Chemische Berichte
, vol.97
, pp. 2109
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Bohlman, F.1
Bresinsky, E.2
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29
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84986505652
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Acetylenic nitriles 3–5 [13a–13c] were obtained by ammonolysis of the commercially available corresponding acetylenic ethyl esters to the corresponding amides and dehydration to the nitriles with phosphorus oxychloride by slight modifications to the procedure reported in reference [13c]:, Bull. Soc. Chim. France
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(1972)
, pp. 2381
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Texier, F.1
Carrie, R.2
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33
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84986516115
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Conditions required for the amidine exchange implicated in such reactions are generally strenuous and the use of amidines other than formamidine have been studied relatively little [15a‐c]. Benzamidine has been condensed with 2,4‐diamino‐5‐cyano‐6‐dimethylaminopyridine to give a 7‐phenylpyrimido[4,5‐d]pyrimidine [15a] and acetamidine similarly reacts with 3‐amino‐4‐cyano‐5‐methylpyrazole to give 4‐amino‐3,6‐dimethylpyrazolo[3,4‐d]pyrimidine [15b]: J. Weinstock and V. D. Wichelhaus, French Patent 1,335,354 (August 6, 1963)
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36
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84986526006
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[c], J. Chem. Soc., Perkin Trans I
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(1975)
, pp. 345
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Albert, A.1
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38
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33947468820
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THE SYNTHESIS OF ALKYLTHIOKETODIHYDROQUINAZOLINES FROM ANTHRANILICNITRILE.
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This method is akin to an early report of the formation of 2‐alkyl‐4‐thionoquinazoline by the treatment of anthranilonitrile with an acid anhydride and sodium sulfide. That method involved in situ acylation of the amino group, conversion of the nitrile to the thioamide and condensation to the thioquinazoline as a one‐pot conversion
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(1903)
Journal of the American Chemical Society
, vol.25
, pp. 372
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Bogert, M.T.1
Breneman, H.C.2
Hand, W.F.3
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39
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0007331514
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Conversion of aromatic o‐aminothioamides to the corresponding pyrimidinethione derivatives with triethylorthoformate (either alone [18a,3c] or in the presence of acetic anhydride [18b]) has been reported
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(1977)
Tetrahedron
, vol.23
, pp. 885
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Taylor, E.C.1
McKillop, A.2
Vromen, S.3
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42
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0004135137
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Supplement I, 1st Ed, Wiley‐Interscience, New York
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(1970)
The Pyrimidines
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43
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84986434312
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This method (which has received little, if any, attention to date) appears to be an attractive alternative to the conventional set of conversions hydroxy → chloro → amino in 4‐substituted pyrimidines [19] whenever the corresponding thione is readily accessible. The scope of this approach to amino derivatives from this and other fused pyrimidinethione systems is under investigation.
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49
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84986432960
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Private communication from Dr. Joseph H. Burchenal.
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