20687-94-9Relevant articles and documents
POLYHALOAROMATICS. PART I. 4,5,6,7-TETRACHLORO-1,1,3,3-TETRA-FLUORO-1,3-DIHYDROISOBENZOFURAN AND RELATED COMPOUNDS FROM THE REACTION OF TETRACHLOROPHTHALIC ANHYDRIDE WITH SULPHUR TETRAFLUORIDE
Dmowski, Wojciech,Wielgat, Jerzy
, p. 429 - 438 (1987)
Flourination of tetrachlorophthalic anhydride 1 or tetrachloro-phthalic acid hemihydrate 4 with an excess of sulphur tetrafluoride provides an efficient one-step synthesis of 4,5,6,7-tetrachloro-1,1,3,3-tetrafluoro-1,3-dihydroisobenzofuran 2. 3,4,5,6-Tetr