Five‐Membered Metallacyclic Allenoids: Synthesis and Structure of Remarkably Stable Strongly Distorted Cyclic Allene Derivatives | Zendy

Ugolotti Juri | Zendy; Dierker Gereon | Zendy; Kehr Gerald | Zendy; Fröhlich Roland | Zendy; Grimme Stefan | Zendy; Erker Gerhard | Zendy

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Five‐Membered Metallacyclic Allenoids: Synthesis and Structure of Remarkably Stable Strongly Distorted Cyclic Allene Derivatives

Author(s) -

Ugolotti Juri,

Dierker Gereon,

Kehr Gerald,

Fröhlich Roland,

Grimme Stefan,

Erker Gerhard

Publication year - 2008

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200705615

Subject(s) - allene , hydroboration , chemistry , trimethylsilyl , derivative (finance) , transmetalation , yield (engineering) , diene , stereochemistry , medicinal chemistry , organic chemistry , physics , catalysis , economics , financial economics , thermodynamics , natural rubber

Metallocene lends a hand : Treatment of [bis(alkynyl)HfCp 2 ] complexes with HB(C 6 F 5 ) 2 results in 1,1‐hydroboration and subsequent carbon–carbon coupling to yield the corresponding metallacyclopenta‐1,2‐diene derivatives (see structure of the trimethylsilyl derivative; Hf brown, B red, Si blue, F green, C black). X‐ray diffraction and a quantum chemical analysis reveal an electronic structure between a bent cyclic allene and a coordinated butenyne.

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