Abstract We demonstrated, for the first time, that 3, 6-bis (3-hexylthien-2-yl)-s-tetrazine (TTz) with hexyl group at the 3-position of thiophene rings can be prepared using a modified sulfur- assisted Pinner synthesis. Although the hexyl group creates large steric hindrance to the tetrazine ring formation reaction, and the reaction under a traditional condition only produces trace amount of the target product, the yield of this reaction under a modified ...
