80056-16-2Relevant 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.
Electron Deficient Heteroaromatic Ammonioamidates, Part 21. N-(3-Quinazolinio)amidates, Part 9. Addition Reactions of Some N-(3-Quinazolinio)amidates with Acetone
Barta-Szalai, Gizella,Csoeregh, Ingeborg,Czugler, Matyas,Fetter, Jozsef,Lempert, Karoly,Moller, Jorgen
, p. 3301 - 3368 (2007/10/02)
The N-(3-quinazolinio)amidates 1a-1f react with acetone in the presence of butylamine to furnish two isomeric 1:1 adducts (type 3 and 4); in one case (1f) a 2:1 condensation product (5) was formed.In the presence of silica the amidates 1a and 1b furnish with acetone only type 3 adducts.The type 3 adducts are analogous to those formed by the addition of O- and N-nucleophiles across the C(4)-N(3)-N bonds of N-(3-quinazolinio)amidates.IR, 1H NMR and mass spectra of the adducts are described, as well as the X-ray molecular structure determination of compounds 4f and 5.
