Process for the preparation of octafluoro-(2,2) paracyclophane

Details Process for the preparation of octafluoro-(2,2) paracyclophane Process for the preparation of octafluoro-(2,2) paracyclophane

1997-11-26

1998-12-15

Siegel, Alan

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

570143, 570127, C07C 2513

Patent

active

058499628

ABSTRACT:
contacting a reactant selected from the group consisting of 1,4-bis(bromodifluoromethyl)benzene (dibromide), 1,4-bis(chlorodifluoromethyl)benzene (dichloride), and 1,4-bis(iododifluoromethyl)benzene (diiodide) with trimethylsilyltributyltin (TMSTBT) (a reducing agent) and fluoride ions in a refluxing solution of hexamethylphosphoramide (HMPA) or dimethylsulfoxide (DMSO) in tetrahydrofuran (THF) at conditions effective

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