23981-08-0Relevant articles and documents
Platinum-Catalyzed Desaturation of Lactams, Ketones, and Lactones
Chen, Ming,Rago, Alexander J.,Dong, Guangbin
supporting information, p. 16205 - 16209 (2018/11/23)
The development of a general platinum-catalyzed desaturation of N-protected lactams, ketones, and lactones to their conjugated α,β-unsaturated counterparts is reported. The reaction operates under mildly acidic conditions at room temperature or 50 °C. It is scalable and tolerates a wide range of functional groups. The complementary reactivity to the palladium-catalyzed desaturation is demonstrated in the efficient conversion of iodide, bromide, and sulfur-containing substrates.
Novel photoinduced electron transfer-initiated cyclization of 1,2,4-triazole-substituted α-dehydronaphthylalaninamides in the presence of triethylamine
Maekawa, Kei,Tomoda, Atsushi,Igarashi, Tetsutaro,Sakurai, Tadamitsu
scheme or table, p. 739 - 746 (2010/09/18)
The irradiation of the title compounds [(Z)-1] in nitrogen-saturated methanol containing triethylamine (TEA) at room temperature was found to quantitatively afford 2(1H)-benzo[f]quinolinone (2) and 3,4-dihydro-3-(3-methyl- 5-substituted 1,2,4-triazol-4-yl
Photochemistry of Some Azaphenanthrene N-Oxides
Albini, Angelo,Bettinetti, Gian Franco,Minoli, Giovanna
, p. 1159 - 1161 (2007/10/02)
1- and 4-Azaphenanthrene N-oxides undergo solvent-dependent photoisomerization, yielding naphtho-1,3-oxazepines in aprotic solvents and benzoquinolin-1(2H)-ones in water.No ring enlargement but only isomerization to the corresponding lactam is observed to take place in the case of 9-azaphenanthrene N-oxide.Measurements of the quantum yield of two photoprocesses (lactam formation and ring enlargement) confirm the difference between the photochemical behaviour of 9-azaphenanthrene N-oxide and that of the other two N-oxides examined
