The photodissociation of benzoin diethyl phosphate (1, “caged” phosphate) was studied by nanosecond and picosecond laser flash photolysis. The lowest triplet state of 1, 31, was identified as the reactive excited state with an absorption maximum around 340 nm and a lifetime of 10-25 ns, depending on the solvent. Two different reaction paths were identified, both of which involve the release of ...

The NHC-catalyzed reactions of ortho electron-deficient vinyl substituted arylaldehydes with nitrosoarenes were studied. The reactions produced multifunctional 2,3-benzoxazin-4-ones in good to excellent yields via a cascade aza-benzoin reaction between aldehyde and nitroso groups followed by an intramolecular oxo-Michael addition. The resulting 1-acetate substituted 2,3-benzoxazinones were tran...

The title compound, C(20)H(24)N(2)O(6), was obtained as an unexpected product by the reaction of hydrazinium dithio-carbazate with 2,3,4-trimeth-oxy-benzaldehyde in refluxing ethanol. The mol-ecule lies on a center of inversion. The crystal packing is stabilized by weak inter-molecular C-H⋯O inter-actions.

Quinoxaline derivatives exhibit a wide range of biological activities and electron transport properties. The presence of electron withdrawing quinoxaline ring has been used in π-conjugated structures to fabricate the OLED materials. In the present investigation, vinyl benzaldehyde capped quinoxaline derivatives were synthesized using 6-methyl-2,3difurylquinoxaline with terephthaldicarboxaldehyd...

The title compound, C(21)H(21)NO(2)·C(3)H(7)NO, was synthesized by solvent-free one-pot three-component reaction of naphthalen-2-ol, 2-hy-droxy-benzaldehyde and pyrrolidine. The dihedral angle between the naphthalene ring system and the benzene ring is 77.74 (6)°. The pyrrolidine ring assumes an envelope conformation. An intra-molecular O-H⋯N and an inter-molecular O-H⋯O hydrogen bond are obser...

The title compound, C(15)H(13)ClN(2)O(3)·CH(3)OH, was synthesized by the condensation reaction of 2-hy-droxy-4-meth-oxy-benzaldehyde with 4-chloro-benzohydrazide in methanol. The Schiff base mol-ecule displays a trans configuration with respect to the C=N and C-N bonds. The dihedral angle between the two benzene rings is 5.3 (2)°. In the crystal, mol-ecules are linked by N-H⋯O and O-H⋯O hydroge...