Homolytic Cleavage Reactions of a Neutral Doubly Base Stabilized Diborane(4)

The neutral doubly base stabilized diborane(4) [C2H2(NCH2C6H4)2CB]2 (3a), featuring an electron-precise B­(sp3)–B­(sp3) σ bond, was generated by one-electron reduction of the corresponding borenium precursor with Cp*2Co followed by dimerization. Compound 3a reacts with TEMPO, (PhC­(O)­O)2, PhNO, (th...

Full description

Saved in:
Bibliographic Details
Published inOrganometallics Vol. 36; no. 16; pp. 3163 - 3170
Main Authors Cao, Levy L, Stephan, Douglas W
Format Journal Article
LanguageEnglish
Published WASHINGTON American Chemical Society 28.08.2017
Amer Chemical Soc
Subjects
Chemistry
Chemistry, Inorganic & Nuclear
Chemistry, Organic
Physical Sciences
Science & Technology
METAL-PROMOTED REACTIONS
ELECTRON SIGMA-BOND
HETEROCYCLIC CARBENE BORANES
LEWIS PAIR
B-B SINGLE
TRANSITION-METAL
COMPLEXES
REACTIVITY
BORON TRIPLE BOND
RADICAL REACTIONS
Online AccessGet full text

Cover

More Information
Summary:The neutral doubly base stabilized diborane(4) [C2H2(NCH2C6H4)2CB]2 (3a), featuring an electron-precise B­(sp3)–B­(sp3) σ bond, was generated by one-electron reduction of the corresponding borenium precursor with Cp*2Co followed by dimerization. Compound 3a reacts with TEMPO, (PhC­(O)­O)2, PhNO, (tht)­AuCl (tht = tetrahydrothiophene), and S8. The resulting species, (C2H2(NCH2C6H4)2CB)­(L) (L = ONC5H6Me4 (4), OC­(O)­Ph (5), PhNO (6), Cl (7)) and [(C2H2(NCH2C6H4)2CB)2(S4)] (8), have been fully characterized and are consistent with homolytic cleavage of the B–B bond in 3a.
ISSN:0276-7333
1520-6041
DOI:10.1021/acs.organomet.7b00522