Formation of a 2,5‐Diborabicyclo[2.1.1]hexane Derivative and Its Conversion to a Tetracarbahexaborane | Zendy

Enders Markus | Zendy; Pritzkow Hans | Zendy; Siebert Walter | Zendy

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Formation of a 2,5‐Diborabicyclo[2.1.1]hexane Derivative and Its Conversion to a Tetracarbahexaborane

Author(s) -

Enders Markus,

Pritzkow Hans,

Siebert Walter

Publication year - 1992

Publication title -

angewandte chemie international edition in english

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 0570-0833

DOI - 10.1002/anie.199206061

Subject(s) - ring (chemistry) , dimer , chemistry , derivative (finance) , double bond , atom (system on chip) , hexane , hydrogen atom , crystal structure , stereochemistry , hydrogen bond , crystallography , molecule , group (periodic table) , polymer chemistry , organic chemistry , computer science , financial economics , economics , embedded system

A framework rearrangement and a migration of a hydrogen atom result in the formation of the carborane 2 from the bridged boretane 1 . The crystal structure analysis shows that the four‐membered ring in 1 is extremely folded. This suggests a 1,3‐transannular interaction between the free p orbital at the B atom and the exocyclic double bond at the C atom. Both the formation of 1 from the nonisolable ( t BuBCHCCMe 2 ) 2 dimer and the rearrangement to 2 are novel reactions.

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