Divergent Acyl and Decarbonylative Liebeskind–Srogl Cross-Coupling of Thioesters by Cu-Cofactor and Pd–NHC (NHC = N-Heterocyclic Carbene) Catalysis
作者:Shiyi Yang、Xiang Yu、Michal Szostak
DOI:10.1021/acscatal.2c05550
日期:2023.2.3
cross-coupling reactions of thioesters by selective acyl C(O)–S cleavage have emerged as a powerful platform for the preparation of complex molecules. Herein, we report divergent Liebeskind–Srogl cross-coupling of thioesters by Pd–NHC (NHC = N-heterocycliccarbene) catalysis. The reaction provides straightforward access to functionalized ketones by highly selective C(acyl)–S cleavage under mild conditions. Most
Thiol Ester−Boronic Acid Coupling. A Mechanistically Unprecedented and General Ketone Synthesis
作者:Lanny S. Liebeskind、Jiri Srogl
DOI:10.1021/ja005613q
日期:2000.11.1
Mobilizing Cu(I) for Carbon−Carbon Bond Forming Catalysis in the Presence of Thiolate. Chemical Mimicking of Metallothioneins
作者:Zhihui Zhang、Matthew G. Lindale、Lanny S. Liebeskind
DOI:10.1021/ja200792m
日期:2011.4.27
Copper(I) is rendered catalytically viable in the presence of thiolate by the design of a small molecule chemical analogue of the metallothionein system in which an N-O reactant serves the same conceptual purpose of the S-S reactant of the biological system.
DEPROTECTION OF FUNCTIONAL GROUPS BY MULTI-PHOTON INDUCED ELECTRON TRANSFER
申请人:Marder Seth
公开号:US20100207078A1
公开(公告)日:2010-08-19
The present invention provides novel compositions suitable for use in an intermolecular photodeprotection reaction scheme. Such compositions include a chromophore compound and a second compound having a photocleavable group bonded to a protected functional group. Novel compounds which can used in intramolecular photodeprotection are also provided. These compounds have a chromophore moiety bonded to a photocleavable group, which itself is bonded to a protected group. The compounds and compositions disclosed herein can be used in two-photon and multi-photon excitation.
[EN] DEPROTECTION OF FUNCTIONAL GROUPS BY MULTI-PHOTON INDUCED ELECTRON TRANSFER<br/>[FR] DÉPROTECTION DE GROUPES FONCTIONNELS PAR TRANSFERT D'ÉLECTRONS INDUIT PAR DE MULTIPLES PHOTONS
申请人:GEORGIA TECH RES INST
公开号:WO2008008481A2
公开(公告)日:2008-01-17
[EN] The present invention provides novel compositions suitable for use in an intermolecular photodeprotection reaction scheme. Such compositions include a chromophore compound and a second compound having a photocleavable group bonded to a protected functional group. Novel compounds which can used in intramolecular photodeprotection are also provided. These compounds have a chromophore moiety bonded to a photocleavable group, which itself is bonded to a protected group. The compounds and compositions disclosed herein can be used in two-photon and multi-photon excitation. [FR] La présente invention concerne de nouvelles compositions convenant à une réaction de photodéprotection intermoléculaire. De telles compositions comportent un composé chromophore et un second composé possédant un groupe photoclivable lié à un groupe fonctionnel protégé. L'invention concerne également des composés novateurs pouvant être utilisés dans la photodéprotection intramoléculaire. Ces composés possèdent un groupement chromophore lié à un groupe photoclivable, qui est lui-même lié à un groupe protégé. Les composés et compositions de la présente invention peuvent être utilisés pour une excitation à deux photons et à multiples photons.