Facile Access to Unprecedented Electron‐Precise Monohydrodiboranes(4),  cis ‐1,2‐Dihydrodiboranes(4), and a 1,1‐Dihydrodiborane(5) | Zendy

Arrowsmith Merle | Zendy; Braunschweig Holger | Zendy; Radacki Krzysztof | Zendy; Thiess Torsten | Zendy; Turkin Arthur | Zendy

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Facile Access to Unprecedented Electron‐Precise Monohydrodiboranes(4), cis ‐1,2‐Dihydrodiboranes(4), and a 1,1‐Dihydrodiborane(5)

Author(s) -

Arrowsmith Merle,

Braunschweig Holger,

Radacki Krzysztof,

Thiess Torsten,

Turkin Arthur

Publication year - 2017

Publication title -

chemistry – a european journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.687

H-Index - 242

eISSN - 1521-3765

pISSN - 0947-6539

DOI - 10.1002/chem.201605270

Subject(s) - adduct , phosphine , chemistry , hydride , irradiation , ring (chemistry) , medicinal chemistry , stereochemistry , organic chemistry , physics , catalysis , nuclear physics , hydrogen

2,3‐Bis(dimethylamino)‐substituted B 2 N 2 C 2 heterocycles underwent selective dimethylamino/hydride exchange with either one or two equivalents of BH 3 ⋅ SMe 2 to give the corresponding cyclic monohydrido‐ or ( cis )1,2‐dihydridodiboranes(4), respectively. Upon either heating or irradiation in solution, the latter underwent ring contraction to the corresponding five‐membered BN 2 C 2 heterocycles, whereas irradiation of the 1,2‐dimethylaminoethene‐supported 1,2‐dihydridodiborane(4) in the presence of PEt 3 gave an unprecedented unsymmetrical 1,1‐dihydrodiborane(5) phosphine adduct.

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