64201-01-0Relevant articles and documents
Medium effects on Zwitterionic-biradicaloid intermediates from two phenyl-α-oxoamides. Irradiations in fluid and solid protic media, neat solid phases, and the solid, smectic and isotropic phases of a completely saturated phosphonium salt at different tem
Chesta, Carlos A.,George, Mathew,Luo, Chuping,Weiss, Richard G.
, p. 570 - 583 (2008/09/17)
The photochemical processes of two N,N-dialkyl phenyl-α-oxoamides, N,N-diisopropyl phenyl-α-oxoamide (1) and N,N-dibenzyl phenyl-α-oxoamide (2), are investigated at different temperatures in methanol and ethylene glycol (to probe the influences of H-bondi
Formation of Chiral β-Lactams by Photocyclisation of Achiral N,N-Diisopropylarylglyoxylamides in their Chiral Crystalline Form
Toda, Fumio,Miyamoto, Hisakazu
, p. 1129 - 1132 (2007/10/02)
A variety of N,N-diisopropylarylglyoxylamides formed chiral crystals in which the originally symmetrical molecules were arranged in a chiral form.Photoreaction of the chiral crystals gave optically active β-lactam derivatives.
Photocyclization of α-keto amides in homogeneous solution and aqueous cyclodextrin media. The role of zwitterions and diradicals in photoinduced electron transfer reactions
Chesta, Carlos A.,Whitten, David G.
, p. 2188 - 2197 (2007/10/02)
A mechanistic investigation of the photoreaction of the N,N-disubstituted benzoyl amides, PhCOCONR'R" 1-4 (1: R' = C2H5, R" = Ph; 2: R' = R" = C2H5; 3: R' = R" = CH2Ph; 4: R' = R" = i-C3Hs
PHOTOCHEMICAL REACTIONS OF alpha -OXO AMIDES. NORRISH TYPE II REACTIONS VIA ZWITTERIONIC INTERMEDIATES.
Aoyama,Sakamoto,Kuwabara,Yoshida,Omote
, p. 1958 - 1964 (2007/10/02)
The mechanism of the photochemical reactions of alpha -oxo amides was studied. Establishment of the intermediacy zwitterions was accomplished by the detection of iminium ions formed by protonation of the zwitterions and by the independent generation of the zwitterions by the reaction of hydroxyphenylketene with imines. The remarkable substituent and solvent effects in the photoreactions were rationalized on the basis of the mechanism.
PHOTOCHEMICAL REACTIONS OF N,N-DIALKYL α-OXOAMIDES ADSORBED ON SILICA GEL AND ALUMINA
Aoyama, Hiromu,Miyazaki, Ken-ichi,Sakamoto, Masami,Omote, Yoshimori
, p. 1583 - 1586 (2007/10/02)
The photochemical reactions of N,N-dialkyl α-oxoamides adsorbed on silica gel were similar to those in acidic methanol, which indicated that the acidity of silanol groups on the surfaces of silica gel played important roles.The photolysis of the amides on