TY - JOUR
T1 - Comparison of ullmann/RCM and ullmann/bis-hydrazone coupling reactions; New access to benzodithiophenes for dye-sensitized solar cell and thiahelicene applications
AU - Stephenson, G. Richard
AU - Cauteruccio, Silvia
AU - Doulcet, Julien
PY - 2014/2/5
Y1 - 2014/2/5
N2 - The use of CuTC (Liebeskind's catalyst), followed by methylenation and ring-closing metathesis, or bis-hydrazone coupling reactions is described. This approach establishes an alternative non-photochemical synthesis of the strategically important 1,2-b:4,3-b′ BDT regioisomer, which has previously been underused in applications such as dye-sensitized solar cells and nonlinear optics because of the difficulty of synthesis on a large scale.
AB - The use of CuTC (Liebeskind's catalyst), followed by methylenation and ring-closing metathesis, or bis-hydrazone coupling reactions is described. This approach establishes an alternative non-photochemical synthesis of the strategically important 1,2-b:4,3-b′ BDT regioisomer, which has previously been underused in applications such as dye-sensitized solar cells and nonlinear optics because of the difficulty of synthesis on a large scale.
KW - alkene metathesis
KW - benzodithiophene
KW - bis-hydrazone coupling
KW - Liebeskind's catalyst
KW - non-photochemical synthesis
UR - http://www.scopus.com/inward/record.url?scp=84895927932&partnerID=8YFLogxK
U2 - 10.1055/s-0033-1340667
DO - 10.1055/s-0033-1340667
M3 - Article
AN - SCOPUS:84895927932
VL - 25
SP - 701
EP - 707
JO - Synlett
JF - Synlett
SN - 0936-5214
IS - 5
ER -