Synthesis of dihydroisoquinolinone-4-methylboronic esters <i>via</i> domino Heck/borylation using a structurally characterized palladacycle as a catalyst
作者:Jhansi Rani Morla、Dastagiri Reddy Nareddula
DOI:10.1039/d2ra00389a
日期:——
Synthesis of dihydroisoquinolinone-4-methylboronic esters from N-allylcarboxamides and B2(Pin)2 via domino Heck/borylation approach is reported. A quinoxaline-based NHC-palladacycle [Pd(C∧C:)PPh3Cl], which has been structurally characterized, is used as a catalyst. The scope of the substrate with a wide range of substituents is explored. In addition to the synthesis of title compounds, a few examples
Designed switch from covalent to non-covalent inhibitors of carboxylesterase Notum activity
作者:Benjamin N. Atkinson、Nicky J. Willis、Yuguang Zhao、Chandni Patel、Sarah Frew、Kathryn Costelloe、Lorenza Magno、Fredrik Svensson、E. Yvonne Jones、Paul V. Fish
DOI:10.1016/j.ejmech.2023.115132
日期:2023.5
palmiteolate pocket with key interactions being aromatic stacking and a watermediated hydrogen bond to the oxyanion hole. These N-acyl indolines 4 will be useful tools for use in vitro studies to investigate the role of Notum in disease models, especially when paired with a structurally related covalent inhibitor (e.g. 4w and 2a). Overall, this study highlights the designed switch from covalent to non-covalent
Reactivity of stable neopentyl-Pd intermediates in the absence of nucleophile
作者:Frédéric Liron、Paul Knochel
DOI:10.1016/j.tetlet.2007.05.018
日期:2007.7
In the absence of any trapping agent, stable neopentyl-Pd intermediates can terminate a catalytic cycle by undergoing a regioselective C-H activation, leading to various spiro or fused cyclopropane derivatives in a straightforward manner. If the neopentyl-Pd intermediate contains a heteroatom at a suitable position, C-H activation does not occur and stable palladacycles are isolated. (c) 2007 Published by Elsevier Ltd.
DITTAMI, JAMES P.;RAMANATHAN, HALASYA, TETRAHEDRON LETT., 29,(1988) N 1, 45-48
作者:DITTAMI, JAMES P.、RAMANATHAN, HALASYA
DOI:——
日期:——
Intramolecular radical cyclization reactions. An approach to the indole alkaloids
作者:James P. Dittami、Halasya Ramanathan
DOI:10.1016/0040-4039(88)80012-1
日期:1988.1
The intramolecular radical cyclization reaction of N-allyl substituted derivatives of o-bromoacetanilide provides a short and effective route to a variety of dihydroindole systems.