作者:Jiayan He、Guangle Chen、Benxiang Zhang、Yi Li、Jia-Rong Chen、Wen-Jing Xiao、Feng Liu、Chaozhong Li
DOI:10.1016/j.chempr.2020.02.003
日期:2020.5
radical C(sp3)-sulfonylation remains elusive. Herein, we report the decarboxylative radical sulfonylation with sulfinates. With the merger of 4CzIPN (1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene) and Cu(OTf)2 as catalysts, the visible-light-induced reaction of redox-active esters of aliphatic carboxylic acids with organosulfinates at room temperature provides the corresponding decarboxylative
Organo Photoinduced Decarboxylative Alkylation of Coumarins with <i>N</i>-(Acyloxy)phthalimide
作者:Krishna N. Tripathi、Md. Belal、Ravi P. Singh
DOI:10.1021/acs.joc.9b00977
日期:2020.1.17
A metal-free and mild, photoinduced decarboxylative 4-position alkylation of coumarins has been reported. Photoinduced single electron transfer has been initiated by utilizing the visible-light absorptivity of Eosin Y for a reductive generation of alkyl radicals from N-(acyloxy)phthalimide esters. Depending on the nature of N-(acyloxy)phthalimide esters (primary, secondary, and tertiary carboxylic
1,4-Dihydropyridine (DHP) derivatives play key roles in biology, but are rarely used as catalysts in synthesis.
1,4-二氢吡啶(DHP)衍生物在生物学中扮演关键角色,但很少被用作合成催化剂。
One-Pot Synthesis of Cereblon Proteolysis Targeting Chimeras via Photoinduced C(sp<sup>2</sup>)–C(sp<sup>3</sup>) Cross Coupling and Amide Formation for Proteolysis Targeting Chimera Library Synthesis
作者:Christine M. Arndt、Jacqueline Bitai、Jessica Brunner、Till Opatz、Paola Martinelli、Andreas Gollner、Kevin R. Sokol、Matthias Krumb
DOI:10.1021/acs.jmedchem.3c01613
日期:2023.12.28
In this study, a one-pot synthesisvia photoinduced C(sp2)–C(sp3) coupling followed by amideformation to access proteolysis targeting chimeras (PROTACs) was developed. The described protocol was studied on cereblon (CRBN)-based E3-ligase binders and (+)-JQ-1, a bromodomain inhibitor, to generate BET (bromodomain and extra terminal domain) targeting protein degraders. The generated PROTACs were profiled
作者:Brauer, Jan、Wiechert, Rainer、Hahn, Anika、Opatz, Till
DOI:10.1021/acs.orglett.4c01291
日期:——
A short synthesis of the ergotalkaloid lysergene and a formal total synthesis of lysergic acid diethylamide (LSD) under the avoidance of palladium and including two nickel-catalyzed steps instead have been developed. A key intermediate of this approach has already been reported by Hendrickson et al. in 2004 (Hendrickson, J.B. et al. Org. Lett. 2004, 6, 3–5), yet the spectral data do not match, adding