Practical Thiol Surrogates and Protective Groups for Arylthiols for Suzuki−Miyaura Conditions
摘要:
We have developed practical thiol surrogates and arylthiol protective groups for the Suzuki-Miyaura reaction. 2-Ethylhexyl-3-mercaptopropionate and 4-(2'-mercaptoethyl)pyridine were shown to be not only good thiol surrogates but also good protective groups for thiol. We have demonstrated toleration of these protective groups under aqueous Suzuki-Miyaura conditions.
Achieving Nickel Catalyzed C–S Cross-Coupling under Mild Conditions Using Metal–Ligand Cooperativity
作者:Rina Sikari、Suman Sinha、Siuli Das、Anannya Saha、Gargi Chakraborty、Rakesh Mondal、Nanda D. Paul
DOI:10.1021/acs.joc.9b00075
日期:2019.4.5
thiols and (hetero)aryl halides under mild conditions, mostly at room temperature, catalyzed by well-defined singlet diradical Ni(II) catalysts bearing redox noninnocent ligands is reported. Taking advantage of ligand centered redox events, the high-energetic Ni(0)/Ni(II) or Ni(I)/Ni(III) redox steps were avoided in the catalyticcycle. The cooperative participation of both nickel and the coordinated ligands
A compound of the formula ##STR1## wherein Z and Q are as defined in the specification, to pharmaceutical compositions containing them and to their medicinal use.
[EN] BICYCLIC HYDROXAMIC ACID DERIVATIVES<br/>[FR] DERIVES BICYCLIQUES DE L'ACIDE HYDROXAMIQUE
申请人:PFIZER PRODUCTS INC.
公开号:WO1999052910A1
公开(公告)日:1999-10-21
(EN) A compound of formula (I), wherein Z and Q are as defined in the specification, to pharmaceutical compositions containing them and to their medicinal use.(FR) La présente invention concerne un composé de formule (I), dans laquelle Z et Q sont définis dans les spécifications, les compositions pharmaceutiques et les utilisations médicales associées.