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   Dai, Zhen-Yao Zhen-Yao; Lin, Chenxi; Hu, Derek B; Schomaker, Jennifer (January 2025, Chemical Science)

   Azidoalkyation is an efficient strategy for the conversion of unsaturated precursors into nitrogen-containing structural motifs. Herein, we describe a convenient and highly regioselective iron-catalyzed 1,2-azidoalkylation of 1,3-dienes that employs TMSN3... 

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3. Base-Promoted Tandem Synthesis of Indolo[1,2- b ]isoquinolines from 2-Alkynylaniline and Nitroarenes

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   Lin, Huina; Yang, Xinyu; Liu, Shih-Yuan; Jäkle, Frieder (December 2023, ACS Macro Letters)

   The successful polymerization of the Dewar isomer of an azaborinine heterocycle is reported. Controlled ring-opening metathesis polymerization was accomplished with Grubbs and Hoveya−Grubbs second generation catalysts (G2, HG2), as well as a Z-selective Ru catalyst (HGM2001). The structure of the polymers containing 4-membered B−N heterocycles was verified by GPC and multinuclear and 2D NMR. Differences in stereochemistry of polymers derived from G2/HG2 versus the Z-selective catalyst HGM2001 were substantiated by 2D NOESY, FT-IR, and Raman analyses. The incorporation of B−N heterocycles into these polymer structures is promising as a route to functional polymers that contain polar side groups. 

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5. Ni-catalyzed 1,2-benzylboration of 1,2-disubstituted unactivated alkenes

   https://doi.org/10.1039/C9SC04199K  

   Joung, Seewon; Bergmann, Allison M.; Brown, M. Kevin (December 2019, Chemical Science)

   Nickel-catalyzed 1,2-carboboration of alkenes is emerging as a useful method for chemical synthesis. Prior studies have been limited to only the incorporation of aryl groups. In this manuscript, a method for the 1,2-benzylboration of unactivated alkenes is presented. The reaction combines readily available alkenes, diboron reagents and benzylchlorides to generate synthetically versatile products with control of stereochemistry. The utility of the products as well as the mechanistic details of the process are also presented. 

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