fulltext.study @t Gmail

New catalytic systems for coupling of dihalogenopyridines and 5,5″-dibromo-2,2′:6′,2″-terpyridine with 5-bromo-2-trialkylstannylpyridines and 2-trialkylstannylthiophenes

Paper ID Volume ID Publish Year Pages File Format Full-Text
52314 46869 2007 6 PDF Available
Title
New catalytic systems for coupling of dihalogenopyridines and 5,5″-dibromo-2,2′:6′,2″-terpyridine with 5-bromo-2-trialkylstannylpyridines and 2-trialkylstannylthiophenes
Abstract

Catalytic activity of a number of systems consisting of a stable palladium precursor ([Pd(acac)2], [PdCl2(1,5-COD)], …) and a ligand (phosphines, AsPh3, SbPh3, P(OPh)3, …) in Stille coupling reactions of 2,6-dihalogenopirydines with 5-bromo-2-trialkylstannylpyridines, forming 5,5″-dibromo-2,2′:6′,2″-terpyridine. A new, active, selective and convenient catalytic system for this reaction, consisting of [Pd(acac)2] and triphenyl phosphite was found. A new, four membered library of thienyl-substituted pyridine and terpyridine ligands has been synthesized at the same conditions, by coupling of 2-tributylstannyl-3,4-ethylenedioxythiophene or 5-tributylstannyl-2,2′-bithiophene with 5,5″-dibromo-2,2′:6′,2″-terpyridine or 3,5-dibromopyridine.

Keywords
Stille coupling; Terpyridine; Thiophene; Conjugated polymers
First Page Preview
New catalytic systems for coupling of dihalogenopyridines and 5,5″-dibromo-2,2′:6′,2″-terpyridine with 5-bromo-2-trialkylstannylpyridines and 2-trialkylstannylthiophenes
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 10, October 2007, Pages 1457–1462
Authors
, , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us