Abstract
Lithiation of N'-(2-methylphenyl)-N,N-dimethylurea with three molar equivalents of tert-butyllithium at -40 to -30 °C takes place on the nitrogen and on the methyl group at position 2 of the phenyl group. The lithium intermediate thus obtained reacts with a variety of electrophiles to give the corresponding side-chain substituted derivatives in high yields.
Original language | English |
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Pages (from-to) | 365-375 |
Number of pages | 11 |
Journal | Arkivoc |
Volume | 2014 |
Issue number | 5 |
DOIs | |
State | Published - 17 Sep 2014 |
Keywords
- Lateral lithiation
- Lithium intermediate
- N'-(2-methylphenyl)-N
- N-dimethylurea