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Tuning the Basicity of Synergic Bimetallic Reagents: Switching the Regioselectivity of the Direct Dimetalation of Toluene from 2,5‐ to 3,5‐Positions
Author(s) -
Blair Victoria L.,
Carrella Luca M.,
Clegg William,
Conway Ben,
Harrington Ross W.,
Hogg Lorna M.,
Klett Jan,
Mulvey Robert E.,
Rentschler Eva,
Russo Luca
Publication year - 2008
Publication title -
angewandte chemie
Language(s) - German
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.200801158
Subject(s) - regioselectivity , toluene , chemistry , bimetallic strip , reagent , stereochemistry , combinatorial chemistry , organic chemistry , catalysis
Meta ‐ , Meta‐ , Metallierung ! Toluol kann durch Dimetallbasen mit aktiven Me 3 SiCH 2 ‐Liganden direkt an der 3‐ und 5‐Position dimanganiert oder dimagnesiert werden (siehe Schema, blau). Dagegen resultieren n ‐Butylliganden in einer 2,5‐Metallierung (rot). tmp=2,2,6,6‐Tetramethylpiperidid.

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