Zarcone SR, Verardi PJ, Bhuvanesh N, Gladysz JA. A surprise landing on the
terra incognita of macrocyclic dibridgehead diorganoarsines: syntheses, structures, and reactivities.
Chem Commun (Camb) 2022;
58:8694-8697. [PMID:
35833414 DOI:
10.1039/d2cc03235j]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reactions of trans-[Fe(CO)2(NO)(As((CH2)n)3As)]+ BF4- (n = 10, 12, 14) and Bu4N+ Cl- afford the title compounds As((CH2)n)3As, which upon reaction (n = 14) with MCl2 (M = Pt, Ni), Rh(CO)(Cl), and Fe(CO)3 sources reconstitute cage like complexes trans-MLn(As((CH2)14)3As). Reactions with H2O2 and BH3 give the corresponding arsine oxides and boranes. Crystal structures of metal-free species reveal out,out isomers, but cage complex formation is proposed to entail homeomorphic isomerization to in,in isomers with endo directed lone pairs.
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