3,5-bis[5-(Thiazol-2-yl)thien-2-yl]-4h-1,2,6-thiadiazin-4-one

Stille coupling of 3,5-bis(5-bromothien-2-yl)-4H-1,2,6-thiadiazin-4-one (10) with 2-(tri-n-butylstannyl)thiazole and Pd(Ph 3 P) 2 Cl 2 in PhMe, at ca. 110 ◦ C, for 2 h, gave 3,5-bis[5-(thiazol-2-yl)thien-2-yl]-4H-1,2,6-thiadiazin-4-one (9) in 81% yield. The latter is evaluated for its electronic properties.