Li, Yan; Liu, Deguang; Wan, Lei; Zhang, Jun-Yang; Lu, Xi; Fu, Yao published an article in 2022. The article was titled 《Ligand-Controlled Cobalt-Catalyzed Regiodivergent Alkyne Hydroalkylation》, and you may find the article in Journal of the American Chemical Society.Electric Literature of C4H7Br The information in the text is summarized as follows:
Herein, a ligand-controlled cobalt-catalyzed regiodivergent alkyne hydroalkylation was reported. The sensible selection of bisoxazoline and pyridine-oxazoline ligands led to reliable and predictable protocols that provided (E)-1,2-disubstituted and 1,1-disubstituted alkenes with high E/Z stereoselectivity and regioisomeric ratio starting from identical terminal alkyne and alkyl halide substrates and produced trisubstituted alkenes in the case of internal alkynes. This method exhibited a broad scope for terminal and internal alkynes with a wide range of activated and unactivated alkyl halides and shows excellent functional group compatibility. In the experiment, the researchers used many compounds, for example, (Bromomethyl)cyclopropane(cas: 7051-34-5Electric Literature of C4H7Br)
(Bromomethyl)cyclopropane(cas: 7051-34-5) is used as a synthetic building block for the introduction of the cyclopropylmethyl group. It was also used in the synthesis of 1,4-dienes via iron-catalyzed cross-coupling with alkenyl Grignard reagents.Electric Literature of C4H7Br
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary