Alkyl hexafluorocyclobutanes and process for preparing them

Claim 2

A DISUBTITUTED HEXAFLUOROCYCLOBBUTANE IN WHICH THE SUBSTITUENTS ARE ON DIFFERENT ADJACENT CARBON ATOMS OF THE HEXAFLUOROCYCLOBUTANE RING, ONE SUBSTITUENT BEING AN ALKYL GROUP OF 1 TO 18 CARBON ATOMS AND THE OTHER SUBSTITUENT BEING A MEMBER OF THE GROUP CONSISTING OF ALKYL GROUPS OF 1 TO 18 CARBON ATOMS AND HALOGEN ATOMS HAVING AN ATOMIC WEIGHT OF LESS THAN 80.

Claim 3

THE PROCESS WHICH COMPRISES HEATING AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 300*C. IN A CLOSED VESSEL UNDER AUTOGENOUS PRESSURE AN ALKYLTRIFLUOROETHYLENE, IN WHICH THE ALKYL GROUP CONTAINS 1 TO 18 CARBON ATOMS, WITH A SUBSTANTIALLY EQUIMOLECULAR PROPORTION OF A MEMBER OF THE GROUP CONSISTING OF ALKYLTRIFLUOROETHYLENES IN WHICH THE ALKYL GROUP CONTAINS 1 TO 18 CARBON ATOMS AND HALOTRIFLUOROETHYLENES IN WHICH THE HALOGEN ATOM HAS AN ATOMIC WEIGHT OF LESS THAN 80, AND RECOVERING FROM THE REACTION MIXTURE A 1,2-DISUBSTITUTED HEXAFLUOROCYCLOBUTANE IN WHICH AT LEAST ONE SUBSTITUENT IS AN ALKYL GROUP OF 1 TO 18 CARBON ATOMS.

Claim 4

THE PROCESS WHICH COMPRISES HEATING AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 300*C. IN A CLOSED VESSEL UNDER AUTOGENOUS PRESSURE AN ALKYLTRIFLUOROETHYLENE, IN WHICH THE ALKYL GROUP CONTAINS 1 TO 18 CARBON ATOMS, WITH A SUBSTANTIALLY EQUIMOLECULAR PROPORTION OF A MEMBER OF THE GROUP CONSISTING OF ALKYLTRIFLUOROETHYLENES IN WHICH THE ALKYL GROUP CONTAINS 1 TO 18 CARBON ATOMS AND HALOTRIFLUOROETHYLENES IN WHICH THE HALOGEN ATOM HAS AN ATOMIC WEIGHT OF LESS THAN 80, AND RECOVERING FROM THE REACTION MIXTURE A 1,2-DISUBSTITUTED HEXAFLUOROCYCLOBUTANE IN WHICH AT LEAST ONE SUBSTITUENT IS AN ALKYL GROUP OF 1 TO 18 CARBON ATOMS.