197313-32-9Relevant articles and documents
Hexamethyldisilazane Lithium (LiHMDS)-Promoted Hydroboration of Alkynes and Alkenes with Pinacolborane
Liu, Jichao,Wu, Caiyan,Hu, Tinghui,Yang, Wei,Xie, Yaoyao,Shi, Yinyin,Liu, Qianrui,Shao, Yinlin,Zhang, Fangjun
, p. 3442 - 3452 (2022/02/23)
Lithium-promoted hydroboration of alkynes and alkenes using commercially available hexamethyldisilazane lithium as a precatalyst and HBpin as a hydride source has been developed. This method will be appealing for organic synthesis because of its remarkable substrate tolerance and good yields. Mechanistic studies revealed that the hydroboration proceeds through the in situ-formed BH3species, which acts to drive the turnover of the hydroboration of alkynes and alkenes.
Synthesis method of alkenyl boric acid ester
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Paragraph 0031-0035, (2021/05/12)
The invention discloses a synthesis method of alkenyl boric acid ester. The alkenyl boric acid ester compound with a diversified structure is obtained by catalyzing hydroboration of alkyne through rare earth. Particularly, the alkenyl boric acid ester com
Reductive Cyclization of Unactivated Alkyl Chlorides with Tethered Alkenes under Visible-Light Photoredox Catalysis
Claros, Miguel,Ungeheuer, Felix,Franco, Federico,Martin-Diaconescu, Vlad,Casitas, Alicia,Lloret-Fillol, Julio
supporting information, p. 4869 - 4874 (2019/03/17)
The chemical inertness of abundant and commercially available alkyl chlorides precludes their widespread use as reactants in chemical transformations. Presented in this work is a metallaphotoredox methodology to achieve the catalytic intramolecular reductive cyclization of unactivated alkyl chlorides with tethered alkenes. The cleavage of strong C(sp3)?Cl bonds is mediated by a highly nucleophilic low-valent cobalt or nickel intermediate generated by visible-light photoredox reduction employing a copper photosensitizer. The high basicity and multidentate nature of the ligands are key to obtaining efficient metal catalysts for the functionalization of unactivated alkyl chlorides.
