Ahmad Masarwa

N. Kumar, N. Eghbarieh, T. Stein, A.I. Shames, and A. Masarwa. 2020. “Photoredox-Mediated Reaction of gem-Diborylalkenes: Reactivity Toward Diverse 1,1-Bisborylalkanes.” Chemistry - A European Journal, 26, 24, Pp. 5360-5364. Publisher's Version Abstract
The use of gem-diborylalkenes as radical-reactive groups is explored for the first time. These reactions provide an efficient and general method for the photochemical conversion of gem-diborylalkenes to rapidly access 1,1-bisborylalkanes. This method exploits a novel photoredox decarboxylative radical addition to gem-diborylalkenes to afford α-gem-diboryl carbon-centered radicals, which benefit from additional stability by virtue of an interaction with the empty p-orbitals on borons. The reaction offers a highly modular and regioselective approach to γ-amino gem-diborylalkanes. Furthermore, EPR spectroscopy and DFT calculations have provided insight into the radical mechanism underlying the photochemistry reaction and the stability of the bis-metalated radicals, respectively. © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
K.N. Babu, F. Massarwe, R.R. Reddy, N. Eghbarieh, M. Jakob, and A. Masarwa. 2020. “Unsymmetrical 1,1-bisboryl species: Valuable building blocks in synthesis.” Molecules, 25, 4. Publisher's Version Abstract
Unsymmetrical 1,1-bis(boryl)alkanes and alkenes are organo-bismetallic equivalents, which are synthetically important because they allow for sequential selective transformations of C-B bonds. We reviewed the synthesis and chemical reactivity of 1,1-bis(boryl)alkanes and alkenes to provide information for the synthetic community. In the first part of this review, we disclose the synthesis and chemical reactivity of unsymmetrical 1,1-bisborylalkanes. In the second part, we describe the synthesis and chemical reactivity of unsymmetrical 1,1-bis(boryl)alkenes. © 2020 by the authors.