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Trans-Selective Insertional Dihydroboration of a cis-Diborene: Synthesis of Linear sp³ -sp² -sp³ -Triboranes and Subsequent Cationization.

ABSTRACT: The reaction of aryl- and amino(dihydro)boranes with dibora[2]ferrocenophane 1 leads to the formation 1,3-trans-dihydrotriboranes by formal hydrogenation and insertion of a borylene unit into the B=B bond. The aryltriborane derivatives undergo reversible photoisomerization to the cis-1,2-?-H-3-hydrotriboranes, while hydride abstraction affords cationic triboranes, which represent the first doubly base-stabilized B₃ H₄ ⁺ analogues.

SUBMITTER: Schmidt U

PROVIDER: S-EPMC6972689 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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trans-Selective Insertional Dihydroboration of a cis-Diborene: Synthesis of Linear sp3 -sp2 -sp3 -Triboranes and Subsequent Cationization.

Schmidt Uwe U Werner Luis L Arrowsmith Merle M Deissenberger Andrea A Hermann Alexander A Hofmann Alexander A Ullrich Stefan S Mattock James D JD Vargas Alfredo A Braunschweig Holger H

Angewandte Chemie (International ed. in English) 20191112 1

The reaction of aryl- and amino(dihydro)boranes with dibora[2]ferrocenophane 1 leads to the formation 1,3-trans-dihydrotriboranes by formal hydrogenation and insertion of a borylene unit into the B=B bond. The aryltriborane derivatives undergo reversible photoisomerization to the cis-1,2-μ-H-3-hydrotriboranes, while hydride abstraction affords cationic triboranes, which represent the first doubly base-stabilized B3 H4 + analogues. ...[more]

PMID: 31621993

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