Synthesis of [b]-Fused Benzo[d]furano Heterocycles

Abstract

In the reactions of 3,4,6,7-tetrachloro-2,5-dihydroxy-2,3-dihydrobenzo[b]furan with 4-methyl and 4-phenyl thiosemicarbazides, dithizone and sodium N,N-diethyldithiocarbamate the [b]fused benzo[d]furano heterocycles have been synthesized.

KEY WORDS:

• 1,3,4-thiadiazines
• 1,3 dithiole
• and thiazole
• fused with benzofuran ring