Crystalline Neutral Allenic Diborene

Wei Lu; Yongxin Li; Rakesh Ganguly; Rei Kinjo

doi:10.1002/anie.201704887

Crystalline Neutral Allenic Diborene

Wei Lu, Yongxin Li, Rakesh Ganguly, Rei Kinjo^*

^*Corresponding author for this work

Nanyang Technological University

Research output: Contribution to journal › Article › peer-review

54 Citations (Scopus)

Abstract

A zwitterionic boraalkenyl boronium 3 was synthesized by reduction of cyclic (alkyl)(amino)carbene (cAAC) and trimethylphosphine (PMe₃)-coordinated tetrabromodiborane 2 with KC₈ in the presence of PMe₃. Further reduction of 3 led to the formation of neutral allenic diborene 4. X-ray diffraction and computational studies revealed that 4 features the cumulated C=B and B=B double bonds. The reaction of 4 with four isonitrile molecules afforded a heterocycle 5 with the B₂C₃ five-membered ring, via a complete scission of the B=B bond of 4.

Original language	English
Pages (from-to)	9829-9832
Number of pages	4
Journal	Angewandte Chemie - International Edition
Volume	56
Issue number	33
DOIs	https://doi.org/10.1002/anie.201704887
Publication status	Published - Aug 7 2017
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

ASJC Scopus Subject Areas

Catalysis
General Chemistry

Keywords

allenes
boron
diborenes
isoelectronic analogs
multiple bonds

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10.1002/anie.201704887

Cite this

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abstract = "A zwitterionic boraalkenyl boronium 3 was synthesized by reduction of cyclic (alkyl)(amino)carbene (cAAC) and trimethylphosphine (PMe3)-coordinated tetrabromodiborane 2 with KC8 in the presence of PMe3. Further reduction of 3 led to the formation of neutral allenic diborene 4. X-ray diffraction and computational studies revealed that 4 features the cumulated C=B and B=B double bonds. The reaction of 4 with four isonitrile molecules afforded a heterocycle 5 with the B2C3 five-membered ring, via a complete scission of the B=B bond of 4.",

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T1 - Crystalline Neutral Allenic Diborene

AU - Lu, Wei

AU - Li, Yongxin

AU - Ganguly, Rakesh

AU - Kinjo, Rei

PY - 2017/8/7

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AB - A zwitterionic boraalkenyl boronium 3 was synthesized by reduction of cyclic (alkyl)(amino)carbene (cAAC) and trimethylphosphine (PMe3)-coordinated tetrabromodiborane 2 with KC8 in the presence of PMe3. Further reduction of 3 led to the formation of neutral allenic diborene 4. X-ray diffraction and computational studies revealed that 4 features the cumulated C=B and B=B double bonds. The reaction of 4 with four isonitrile molecules afforded a heterocycle 5 with the B2C3 five-membered ring, via a complete scission of the B=B bond of 4.

KW - allenes

KW - boron

KW - diborenes

KW - isoelectronic analogs

KW - multiple bonds

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Crystalline Neutral Allenic Diborene

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

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