Differentially Substituted Phosphines via Decarbonylation of Acylphosphines
作者:Rongrong Yu、Xingyu Chen、Stephen F. Martin、Zhiqian Wang
DOI:10.1021/acs.orglett.7b00579
日期:2017.4.7
A new route to phosphines was developed by a method that features a “pre-join and transform” process that proceeds via acylphosphine intermediates that may be readily prepared from carboxylic acids and disubstituted phosphines. The efficient decarbonylations of these acylphosphines using a nickel catalyst delivered the corresponding phosphines. This method shows that the carboxyl group can play a role
[EN] THERAPEUTIC COMPOUNDS: PYRIDINE AS SCAFFOLD<br/>[FR] COMPOSES THERAPEUTIQUES DANS LESQUELS LA PYRIDINE EST UTILISEE COMME SQUELETTE
申请人:ASTRAZENECA AB
公开号:WO2005115986A1
公开(公告)日:2005-12-08
Compounds of formulas I, IA, and IB or IC or pharmaceutically acceptable salts thereof: wherein A, A1, A2, A3, A4, R2, R3, R4 and n are as defined in the specifications well as salts and pharmaceutical compositions including the compounds are prepared. They are useful in therapy, in particular in the management of pain.
Novel Tricyclic Modulators of Cannabinoid Receptors
申请人:Diaz Philippe
公开号:US20120039804A1
公开(公告)日:2012-02-16
The compounds of the invention are modulators of cannabinoid receptors CB1 or CB2. The compounds can be used for the prevention or treatment of, e.g., pain, cancer, skin diseases, weight-associated disorders, chemical addictions, psychiatric disorders, neurodegenerative disorders, bone diseases, and inflammatory diseases. The compounds of the invention can further be used to study these diseases and disorders, as well as cannabinoid receptor biology, by coupling the compounds to, e.g., imaging agents.
Palladium-catalyzed C–P bond activation of aroyl phosphine oxides without the adjacent “anchoring atom”
作者:Xingyu Chen、Xiaoyan Liu、Hong Zhu、Zhiqian Wang
DOI:10.1016/j.tet.2020.131912
日期:2021.2
A novel palladium-catalyzed decarbonylation of aroyl phosphine oxides to prepare phosphine oxides from carboxylic acids is developed. Without the adjacent “anchoring atom”, the challenging C–P bondactivation is achieved in high selectivity. The disclosure of this reaction provides a new example of C–P bondactivation and helps to extend the understanding of the property of C–P bond.
Palladium‐Catalyzed Annulation of Arylbenzamides with Diaryliodonium Salts
作者:Cheng Pan、Limin Wang、Jianwei Han
DOI:10.1002/adsc.202100860
日期:2022.1.18
By using diaryliodoniumsalts, a cylization has been accomplished in the synthesis of N-aryl phenanthridinone derivatives via a cascade of ortho-arylation and Csp2-N bond formation in the presence of palladium catalyst. The reaction exhibits a broad compatibility of readily available N-arylnaphthamides.