METALATION OF ARYLMETHYL METHYL ETHERS AND CONNECTION WITH THEIR REDUCTIVE ELECTROPHILIC SUBSTITUTION

Citation
U. Azzena et al., METALATION OF ARYLMETHYL METHYL ETHERS AND CONNECTION WITH THEIR REDUCTIVE ELECTROPHILIC SUBSTITUTION, Tetrahedron letters, 36(31), 1995, pp. 5641-5644
Citations number
9
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
ISSN journal
00404039
Volume
36
Issue
31
Year of publication
1995
Pages
5641 - 5644
Database
ISI
SICI code
0040-4039(1995)36:31<5641:MOAMEA>2.0.ZU;2-4
Abstract
Stable alpha-methoxy arylmethyl carbanions can be generated by metalat ion of arylmethyl methyl ethers, 1, with n-BuLi in THF at -40 degrees C, avoiding Wittig rearrangement to the corresponding alkoxides 2. Rea ction of these carbanions with various electrophiles afforded the expe cted products 3 in satisfactory yields. Connection between the metalat ion procedure and the reductive electrophilic substitution of arylmeth yl methyl ethers allowed the transformation of compounds 1 into 2-aryl propanoic acids, 5.