Benzyl Protection of Phenols under Neutral Conditions: Palladium-Catalyzed Benzylations of Phenols
作者:Ryoichi Kuwano、Hiroki Kusano
DOI:10.1021/ol800548t
日期:2008.5.1
Benzyl protection of phenols under neutral conditions was achieved by using a Pd(eta3-C3H5)Cp-DPEphos catalyst. The palladium catalyst efficiently converted aryl benzyl carbonates into benzyl-protected phenols through the decarboxylative etherification. Alternatively, the nucleophilic substitution of benzyl methyl carbonates with phenols proceeded in the presence of the catalyst, yielding aryl benzyl
Reactivity of Functionalized Arylcarbenes. 2-Phenylethyl Side Chains and Hetero Analogues
作者:Wolfgang Kirmse、Wolfgang Konrad、Ismail S. Özkir
DOI:10.1016/s0040-4020(97)00338-4
日期:1997.7
reactions with β-C-H bonds were observed, pointing to a triplet abstraction-recombination mechanism. Large kinetic and stereochemical deuterium isotope effects support this notion. The ample formation of benzocyclobutenes from 2-CH2-X-Ph substrates is due to insertion of the carbenes into ArCH2-X bonds. Addition to the terminal phenyl groups competes with C-H and C-X insertion. The results of benzophenone
Benzimidazole derivatives and their use as protein kinases inhibitors
申请人:Berdini Valerio
公开号:US20070135477A1
公开(公告)日:2007-06-14
The invention provides compounds of the formula (1):
The compounds have activity against cyclin depdenent kinases, glycogen synthase kinase and Auroa kinases and are therefore useful to treat cancer and viral diseases.
The present invention discloses and claims therapeutic uses of a compound corresponding to the general formula (I):
Wherein, X, R
1
, R
2
, R
3
, R
4
, R
5
, R
5′
, R
6
and n are as described herein.
Pharmaceutical Composition for Preventing and Treating Metabolic Bone Diseases Containing Alpha-Arylmethoxyacrylate Derivatives
申请人:Kim Bum Tae
公开号:US20080280901A1
公开(公告)日:2008-11-13
The present invention relates to a use of a specific alpha-arylmethoxyacrylate derivative, or its pharmacologically acceptable salt or solvate for preventing and treating metabolic bone diseases.