Solventless and Metal‐Free Synthesis of High‐Molecular‐Mass Polyaminoboranes from Diisopropylaminoborane and Primary Amines

The solventless reaction of diisopropylaminoborane with n‐butylamine, at room temperature, leads to a mixture of B(sp2)H‐, B(sp3)H2‐, and B(sp3)H3‐containing species. At low temperature, the reaction outcome is completely modified, thus leading selectively to the formation of high‐mass polybutylamin...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2018-02, Vol.57 (6), p.1519-1522
Main Authors: De Albuquerque Pinheiro, Carlos Antonio, Roiland, Claire, Jehan, Philippe, Alcaraz, Gilles
Format: Article
Language:English
Subjects:
Amines
aminoboranes
Chemical Sciences
Chemical synthesis
inorganic polymers
Low temperature
Metals
NMR spectroscopy
polymers
Solvents
structure elucidation
Temperature effects
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Summary:The solventless reaction of diisopropylaminoborane with n‐butylamine, at room temperature, leads to a mixture of B(sp2)H‐, B(sp3)H2‐, and B(sp3)H3‐containing species. At low temperature, the reaction outcome is completely modified, thus leading selectively to the formation of high‐mass polybutylaminoborane. When extended to a variety of primary amines, under solventless conditions and at low temperature, this reaction provides a new, efficient, and direct metal‐free access to high‐molecular‐mass polyaminoboranes in good to high yields under mild reaction conditions. Critical mass: Diisopropylaminoborane undergoes a BH2‐transfer reaction with primary amines, at low temperature, thus leading selectively to the formation of high‐molecular‐mass polyaminoboranes. This reaction provides a new, efficient, and direct metal‐free access to polyaminoboranes in good to high yields under mild reaction conditions.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201710293