Synthesis of Isoquinolines via Rh(III)-Catalyzed C–H Activation Using Hydrazone as a New Oxidizing Directing Group
摘要:
An efficient and mechanistically interesting method for the synthesis of highly substituted isoquinolines by a Rh(III)-catalyzed hydrazone directed ortho C H bond activation and annulation without an external oxidant is described. This reaction is accomplished via a C-C and C-N bond formation along with N-N bond cleavage.
Deprotection of ketone dimethylhydrazone compounds with porcine pancreatic lipase (PPL) as a biocatalyst is described.
描述了用猪胰脂肪酶(PPL)作为生物催化剂对酮二甲基hydr化合物的脱保护。
Functional group oxidation using sodium perborate1
作者:Alexander McKillop、Jonathan A. Tarbin
DOI:10.1016/s0040-4020(01)81484-8
日期:1987.1
perborate in acetic acid is an effective reagent for the oxidation of anilines to nitroarenes and of sulphides to either sulphoxides or sulphones. It is also an excellent reagent for the oxidative deprotection of ketone dimethylhydrazones. Baeyer-Villiger oxidation of ketones can be carried out with sodium perborate in either trifluoroacetic acid or acetic acid/trifluoroacetic acid mixtures, and hydroquinones
An efficient and mechanistically interesting method for the synthesis of highly substituted isoquinolines by a Rh(III)-catalyzed hydrazone directed ortho C H bond activation and annulation without an external oxidant is described. This reaction is accomplished via a C-C and C-N bond formation along with N-N bond cleavage.
Catalytic Aerobic Oxidative Cleavage of Oximes, Tosylhydrazones and N,N-Dimethylhydrazones to Carbonyl Compounds
作者:Gonzalo Blay、Elisabeth Benach、Isabel Fernández、Sales Galletero、José R. Pedro、Rafael Ruiz
DOI:10.1055/s-2000-6347
日期:——
A new method for the aerobic oxidative cleavage of the C=N double bond of oximes and, tosyl- and N,N-dimethylhydrazones of ketones to yield their corresponding carbonyl compounds, with a Ni(II) complex catalyst, oxygen and pivalaldehyde has been developed.