TY - JOUR
T1 - Thiaheterohelicenes 2. Synthesis of alkylated thiaheterohelicenes
AU - Larsen, J.
AU - Bechgaard, K.
PY - 1996
Y1 - 1996
N2 - The alkylated thiaheterohelicenes 1,2,3,4,6,7,9,10,11,12-decamethl-5,8-dithia[5]-helicene 1 and 6,7,9,10,12,13-hexamethl-5,8,11,14-tetrathia[9]helicene 2 have been prepared by oxidative photolysis of 1,2-diaryl-substituted ethenes. The symmetrical ethenes used in the procedures were prepared by McMurry coupling. Unsymmetrical tetrasubstituted ethenes were obtained by nucleophilic addition of lithium arylates to 3-arylbutan-2-one and dehydration.
AB - The alkylated thiaheterohelicenes 1,2,3,4,6,7,9,10,11,12-decamethl-5,8-dithia[5]-helicene 1 and 6,7,9,10,12,13-hexamethl-5,8,11,14-tetrathia[9]helicene 2 have been prepared by oxidative photolysis of 1,2-diaryl-substituted ethenes. The symmetrical ethenes used in the procedures were prepared by McMurry coupling. Unsymmetrical tetrasubstituted ethenes were obtained by nucleophilic addition of lithium arylates to 3-arylbutan-2-one and dehydration.
KW - Materialer med særlige fysiske og kemiske egenskaber; Nye funktionelle materialer
U2 - 10.3891/acta.chem.scand.50-0077
DO - 10.3891/acta.chem.scand.50-0077
M3 - Journal article
SN - 0904-213X
VL - 50
SP - 77
EP - 82
JO - Acta Chemica Scandinavica
JF - Acta Chemica Scandinavica
IS - 1
ER -