Modification of photochemical reactivity by zeolites: Cation enhanced α-cleavage of aryl alkyl ketones included in faujasites
作者:V. Ramamurthy、D.R. Corbin、N.J. Turro、Y. Sato
DOI:10.1016/s0040-4039(01)93482-3
日期:1989.1
The yield of Norrish type I products are significantly enhanced when aryl alkylketones are photolyzed in the cages of faujasite type zeolites. Exchangeable cations present within the supercages are suggested to be responsible for such an enhanced α-cleavage.
The present invention relates to ketamine derivatives of the formula (I), pharmaceutical compositions comprising them, and methods for treating pain comprising administering them, and their use in the manufacture of medicaments for treating pain. The present invention also relates to methods for anaesthetizing and methods for sedating a subject comprising administering ketamine derivatives of the formula (II).
Calas,M. et al., Bulletin de la Societe Chimique de France, 1973, p. 2079 - 2086
作者:Calas,M. et al.
DOI:——
日期:——
A New Redundant Rearrangement of Aromatic Ring Fused Cyclic α-Hydroxydithiane Derivatives. Synthesis of Aromatic Ring Fused Cyclic 1,2-Diketones with One-Carbon Ring Expansion
作者:Brindaban C. Ranu、Umasish Jana
DOI:10.1021/jo990634s
日期:1999.8.1
A new reaction involving rearrangement of aromatic ring fused cyclic dithiane alcohol by N-chlorosuccinimide in CH2Cl2-H2O to the corresponding one-carbon ring expanded 1,2-diketone has been developed. A wide range of structurally varied dithiane alcohols have been found to undergo this rearrangement in high yields. The general criteria and reaction mechanism for this rearrangement have also been worked out.
Hori, Mikio; Kataoka, Tadashi; Shimizu, Hiroshi, Chemical and pharmaceutical bulletin, 1986, vol. 34, # 9, p. 3599 - 3605