Abstract 4, 6, 7-Trichloro-2-hetarylamino-5-hydroxy-2, 3-dihydrobenzo [b] furans have been prepared from 4, 6, 7-trichloro-2, 5-dihydroxy-2, 3-dihydrobenzo [b] furan and hetarylamines. Reductive opening of the dihydrobenzofuran ring in these compounds gave 3, 5, 6-trichloro-
![4,6,7-trichloro-2,5-dihydroxy-2,3-dihydrobenzo[b]furan Structure](https://image.chemsrc.com/caspic/452/29262-98-4.png)
![2,5-Cyclohexadiene-1,4-dione,2,3,5-trichloro-6-[2-(diethylamino)ethenyl]- Structure](https://image.chemsrc.com/caspic/113/54835-85-7.png)