Synthesis of amides using the Ritter reaction with bismuth triflate catalysis
作者:Emmanuel Callens、Andrew J. Burton、Anthony G.M. Barrett
DOI:10.1016/j.tetlet.2006.10.023
日期:2006.12
N-tert-Alkyl and aryl amides were obtained by a Ritter reaction of various nitriles with tertiary alcohols in the presence of a catalytic amount of bismuth triflate.
Practical Synthesis of Phthalimides and Benzamides by a Multicomponent Reaction Involving Arynes, Isocyanides, and CO<sub>2</sub>/H<sub>2</sub>O
作者:Trinadh Kaicharla、Manikandan Thangaraj、Akkattu T. Biju
DOI:10.1021/ol500403x
日期:2014.3.21
Transition-metal-freemulticomponentreactionsinvolvingarynes and isocyanides with either CO2 or H2O have been reported. With CO2 as the third component, the reactions resulted in the formation of N-substituted phthalimides. The utility of water as the third component furnished benzamide derivatives in moderate to good yields. These reactions took place under mild conditions with broad scope.
4-AZETIDINYL-1-HETEROATOM LINKED-CYCLOHEXANE ANTAGONISTS OF CCR2
申请人:Zhang Xuqing
公开号:US20100267668A1
公开(公告)日:2010-10-21
The present invention comprises compounds of Formula (I).
wherein: X, R
1
, R
2
, R
3
, and R
4
are as defined in the specification. The invention also comprises a method of preventing, treating or ameliorating a syndrome, disorder or disease, wherein said syndrome, disorder or disease is type II diabetes, obesity and asthma. The invention also comprises a method of inhibiting CCR2 activity in a mammal by administration of a therapeutically effective amount of at least one compound of Formula (I).
One-Pot Sequential Schmidt and Ritter Reactions for the Synthesis of<i>N</i>-<i>tert</i>-Butyl Amides
作者:Nabajyoti Hazarika、Gakul Baishya
DOI:10.1002/ejoc.201402662
日期:2014.9
benzaldehydes into their corresponding N-tert-butyl amides through a Schmidtreaction/Ritter reaction sequence is described. A reagent mixture consisting of NaN3 and HBF4·OEt2 in acetic acid efficiently reacts with aromatic and conjugated (α,β-unsaturated) aldehydes to produce nitrile derivatives, which in situ undergo a Ritter reaction with tert-butyl acetate to afford the corresponding N-tert-butyl amides