66152-67-8Relevant academic research and scientific papers
Electron Deficient Heteroaromatic Ammonioamidates. Part 24. N-(Quinazolin-3-io)amidates. Part 11. The Photochemistry of N-(6,7-Methylenedioxyquinazolin-3-io)amidates in Acetone
Batra-Szalai, Gisella,Fetter, Jozsef,Lempert, Karoly,Moeller, Joergen,Parkanyi, Laszlo
, p. 2003 - 2009 (2007/10/02)
N-(Quinazolin-3-io)amidates (1) may exist, depending on the nature of the groups R, R1, and R2, and in the absence of nucleophiles, as equilibrium mixtures of the monomeric (1) and dimeric (3) forms.For the first time evidence has been found for the generation of photoproducts of the dimeric forms (3) via irradiation of the quinazolinioamidates (1a-c) in acetone in which substantial amounts of the dimers (3a-c) are present.Thus, the quinazolinioamidates (1) are the only heteroaromatic ammonioamidates which are known not only to exist in three forms, viz. the monomer, the adducts (2), and the dimers (3), but also to furnish characteristic photoproducts of all three forms.
THE SYNTHESIS OF SOME COMPLEX QUINAZOLINE DERIVATIVES CONTAINING ONE OR TWO QUINAZOLINE RINGS AND CARRYING AMINO, ACYLAMINO, ESTER AND/OR CARBAMATE FUNCTIONAL GROUPS IN THEIR SIDE CHAINS
Bertha, F.,Fetter, J.,Lempert, K.,Moeller, J.
, p. 213 - 224 (2007/10/02)
The scope of the Bischler synthesis has been extented to the synthesis of complex quinazoline derivatives 3b-3d, 5a-5f, 6a, 6b, 7 and 8.Reductive cleavage of the C-N bond of all 4-(N-monosubstituted aminomethyl)quinazolines tested took place on treatment with ethanol in the presence of acids or bases.
