Electrophilic aromatic substitution with N-methoxy-N-acylnitrenium ions generated from N-chloro-N-methoxy amides: syntheses of nitrogen heterocyclic compounds bearing a N-methoxy amide group
Palladium-Catalyzed Hydride Addition/C–H Bond Activation Cascade: Cycloisomerization of 1,6-Diynes
作者:José F. Rodríguez、Katherine I. Burton、Ivan Franzoni、David A. Petrone、Ina Scheipers、Mark Lautens
DOI:10.1021/acs.orglett.8b03057
日期:2018.11.2
The use of ammonium halide salts as metal hydride precursors in a new Pd-catalyzed cycloisomerization of 1,6-diynes, which affords unexplored silylated 2-azafluorenes, is reported. This cascade process includes the addition of a Pd–hydride species to a π-system, intramolecular carbopalladation, and C(sp2)–H bond activation. A variety of functional groups are tolerated, and the synthetic utility of
Cascade radical reaction of substrates with a carbon–carbon triple bond as a radical acceptor
作者:Hideto Miyabe、Ryuta Asada、Yoshiji Takemoto
DOI:10.3762/bjoc.9.128
日期:——
intermolecular reaction involving a radical addition and sequential allylation processes. Next, the effect of hydroxamate ester was studied in the cascadeaddition-cyclization-trappingreaction of substrates with a carbon-carbon triple bond as a radical acceptor. When substrates with a methacryloyl moiety and a carbon-carbon triple bond as two polarity-different radical acceptors were employed, the cascade reaction
Alkyl Group Migration in Ni-Catalyzed Conjunctive Coupling with C(sp<sup>3</sup>) Electrophiles: Reaction Development and Application to Targets of Interest
作者:Seung Moh Koo、Alex J. Vendola、Sarah Noemi Momm、James P. Morken
DOI:10.1021/acs.orglett.9b04453
日期:2020.1.17
cross-coupling reaction is developed that allows the construction of chiral organoboronic esters from alkylboron ate complexes and alkyl iodide electrophiles. The process occurs most efficiently with a Ni/Pybox-comprised catalyst and with an acenapthoquinone-derived boron ligand. Because of the broad functional group tolerance of this reaction, it can be a versatile tool for organicsynthesis. Applications
Regio- and Enantioselective Pd-Catalyzed Allylic Amination of Monosubstituted Allylic Substrates with BocNHOMe
作者:Xue-Long Hou、Bao-Hui Zheng、Chang-Hua Ding
DOI:10.1055/s-0030-1261187
日期:2011.9
A new type of N-nucleophile has been developed in Pd-catalyzed asymmetric allylic amination with monosubstituted allyl substrates, affording corresponding branched allyl amines in high regio- and enantioselectivities. Either OMe or Boc group in products can be removed easily to provide primary amine derivatives with the optical purity unchanged.
[EN] DRUG DELIVERY SYSTEM FOR LOCALLY DELIVERING THERAPEUTIC AGENTS AND USES THEREOF<br/>[FR] SYSTÈME D'ADMINISTRATION DE MÉDICAMENT POUR ADMINISTRER LOCALEMENT DES AGENTS THÉRAPEUTIQUES ET UTILISATIONS DE CELUI-CI
申请人:COVAL BIOPHARMA SHANGHAI CO LTD
公开号:WO2022012492A1
公开(公告)日:2022-01-20
Provided herein are drug delivery systems and methods for locally delivering therapeutic agents, and methods for using such drug delivery systems for the treatment of diseases.