Practical and Selective sp
<sup>3</sup>
C−H Bond Chlorination via Aminium Radicals
作者:Alastair J. McMillan、Martyna Sieńkowska、Piero Di Lorenzo、Gemma K. Gransbury、Nicholas F. Chilton、Michela Salamone、Alessandro Ruffoni、Massimo Bietti、Daniele Leonori
DOI:10.1002/anie.202100030
日期:2021.3.22
also the fine‐tuning of physicochemical and biological properties of drugs, agrochemicals and polymers. We report here a general and practical photochemical strategy enabling the site‐selective chlorination of sp3 C−H bonds. This process exploits the ability of protonated N‐chloroamines to serve as aminium radical precursors and also radical chlorinatingagents. Upon photochemical initiation, an efficient
Fibrin-stabilizing factor inhibitors. 12. 5-Dibenzylaminopentylamine and related compounds, a new type of FSF [fibrin-stabilizing factor] inhibitors
作者:Kurt Juergen Hoffmann、Pal Stenberg、Christine Ljunggren、Uno Svensson、J. Lars G. Nilsson、Olle Eriksson、Ann Hartkoorn、Ragnar Lunden
DOI:10.1021/jm00237a014
日期:1975.3
A series of omegadibenzylaminoalkylamines and related compounds have been prepared and tested as inhibitors of fibrin cross-linking. This structural type was chosen in an attempt to develop noncompetitive inhibitors of fibrinoligase. By the combination of the dibenzylamino moiety at one end and the primary amino group at the other end of a polymethylene chain, the same compound could function both
Intramolecular Microsolvation of S<sub>N</sub>2 Transition States
作者:Stephen L. Craig、John I. Brauman
DOI:10.1021/ja983010x
日期:1999.7.1
onto a primary n-alkyl chloride significantly enhances the rate of SN2 chloride exchange in the gas phase. Trends in reactivity suggest that the rate acceleration depends primarily on through-space solvation of the transition state, especially charge-dipole interactions. The potential energy surfaces and dynamics of these reactions are discussed.
Site-Selective Aliphatic C–H Chlorination Using <i>N</i>-Chloroamides Enables a Synthesis of Chlorolissoclimide
作者:Ryan K. Quinn、Zef A. Könst、Sharon E. Michalak、Yvonne Schmidt、Anne R. Szklarski、Alex R. Flores、Sangkil Nam、David A. Horne、Christopher D. Vanderwal、Erik J. Alexanian
DOI:10.1021/jacs.5b12308
日期:2016.1.20
functionalization of aliphatic C-H bonds remain a paramount goal of organic synthesis. Free radical alkane chlorination is an important industrial process for the production of small molecule chloroalkanes from simple hydrocarbons, yet applications to fine chemical synthesis are rare. Herein, we report a site-selective chlorination of aliphatic C-H bonds using readily available N-chloroamides and apply this transformation
Air-Stable Secondary Phosphine Oxide or Chloride (Pre)Ligands for Cross-Couplings of Unactivated Alkyl Chlorides
作者:Lutz Ackermann、Anant R. Kapdi、Carola Schulzke
DOI:10.1021/ol100658y
日期:2010.5.21
In situ generated and crystallographically well-defined, isolated palladium complexes derived from seven novel air-stable secondary phosphine oxides or chlorides enabled challenging Kumada−Corriu cross-couplings of unactivatedalkylchlorides bearing β-hydrogens and proved applicable to transformations of alkyl-substituted organometallics.