Preparation of polymer-supported benzyllithium reagents.
Cross-linked polystyrenes (2, 8, and 11) possessing pendant double bonds conjugated with benzene ring were prepared by both polymerization method and chemical modification of pre-formed polymers. These double bonds were readily lithiated with n-butyllithium to give the benzyllithium species on the polymer. The polymer supported benzylic anions (3 and 12) are a versatile polymeric organometallic reagent that reacted with various kinds of electrophiles.
Itsuno
Shinichi
S
Department of Materials Science, Toyohashi University of Technology, Japan. itsuno@tutms.tut.ac.jp
Tanaka
Satoshi
S
Hirao
Akira
A
D000838:Anions; D001593:Benzyl Compounds / Q000737:chemistry*; D002245:Carbon Dioxide / Q000737:chemistry; D002625:Chemistry, Organic / Q000379:methods; D009942:Organometallic Compounds / Q000138:chemical synthesis*; D011137:Polystyrenes / Q000138:chemical synthesis / Q000737:chemistry*; D012821:Silanes / Q000737:chemistry; D013997:Time Factors; D014753:Vinyl Compounds / Q000737:chemistry
D000838:Anions; D001593:Benzyl Compounds; D009942:Organometallic Compounds; D011137:Polystyrenes; D012821:Silanes; D014753:Vinyl Compounds; C046771:butyllithium; D002245:Carbon Dioxide