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Carbon Extrusion in 1,2‐Dicarba‐ closo ‐dodecaboranes: Regioselective Boron Substitution in Ten‐Vertex closo ‐Monocarbaborane Anions
Author(s) -
Laromaine Anna,
Teixidor Francesc,
Viñas Clara
Publication year - 2005
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.200462209
Subject(s) - carborane , regioselectivity , substituent , chemistry , carbon fibers , derivative (finance) , boron , vertex (graph theory) , carbon atom , substitution (logic) , atom (system on chip) , stereochemistry , medicinal chemistry , organic chemistry , combinatorics , mathematics , computer science , catalysis , algorithm , composite number , programming language , graph , alkyl , financial economics , economics , embedded system
A nonclassical carbon atom of a dicarbaborane is converted into a classical carbon atom, and the substituent increases in length by one CH 2 group (see scheme). This is the path followed to form [1‐Me‐6‐Et‐1‐ closo ‐CB 9 H 8 ] − regioselectively from [1,2‐Me 2 ‐1,2‐ closo ‐C 2 B 10 H 10 ]. First, the o ‐carborane derivative is reduced to [7‐Me‐μ‐(9,10‐HMeC)‐7‐ nido ‐CB 10 H 11 ] − , and then a carbon‐atom extrusion followed by selective deboronation takes place.