- Regiospecific syntheses of the monomethylated 3-phenyldihydro-1,2,4-triazin-6(1H)-ones
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Unambiguous syntheses of four unreported monomethylated derivatives of 3-phenyldiliydro-1,2,4-triazin-6(1H)-ones, namely, the 1-methyl (2), 2-methyl (3), 4-methyl (4) and the imidic O-methyl derivative (5), are described. Regioselectivity was achieved for
- Collins, David J.,Hughes, Timothy C.,Johnson, Wynona M.
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p. 463 - 468
(2007/10/03)
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- HETEROCYCLES FROM NITRILE IMINES. PART III. SUBSTITUENT EFFECT ON RING-CHAIN TAUTOMERISM OF 1,2,3,4-TETRAHYDRO-s-TETRAZINES
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Selected series of 6-substituted 4-aryl-3-heteroaryl-1-methyl-1,2,3,4-tetrahydro-s-tetrazines (V:1-12) were synthesized via direct interaction between appropriate nitrile imine and model methylhydrazones.The extent of "ring-chain" tautomerism, as evidence
- El-Abadelah, Mustafa M.,Hussein, Ahmad Q.,Saadeh, Haythem A.
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p. 1063 - 1079
(2007/10/02)
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- 1,3-Dipolar Cycloadditions, 91. The Chemistry of N-Methyl-C-phenylnitrilimine
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The treatment of N'--N-methylhydrazinium bromide, accessible by bromination of benzaldehyde-N-methylhydrazone, with triethylamine furnishes the title compound; this method is superior to the thermolysis and photolysis of 2-methyl-5-phe
- Fliege, Werner,Grashey, Rudolf,Huisgen, Rolf
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p. 1194 - 1214
(2007/10/02)
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