Abstract: The following chlorocyclopropanes have been found to possess utility as general inhalation anesthetics: 1,1-dichloro-2-methyl-2,3,3-trifluorocyclopropane, 1,2-dichloro-1-fluoro-2-methylcyclopropane, 1,1,2-trichloro-2,3,3-trifluorocyclopropane, 1,1-dichloro-2-trifluoromethyl-2,3,3-trifluorocyclopropane, 1,2-dichloro-1,2,3,3-tetrafluorocyclopropane, 1,1,2,2-tetrachloro-3,3-difluorocyclopropane and 1,1-dichloro-2,3,3-trifluorocyclopropane.THE PRIOR ARTIn the continuing search for general inhalation anesthetics, there has been recently discovered a few halocyclopropanes and methylhalocyclopropanes and some methyl halocycloproyl ethers. These compounds are disclosed in U.S. Pat. Nos. 3,865,950, 3,839,589 and 3,769,429 as well as in pending applications Ser. No. 499,761 (filed Aug. 22, 1974) for the methylcyclopropanes, and Ser. No. 451,677 (filed Mar. 15, 1974) for the methyl ethers.

Abstract: The following newly synthesized bromofluoromethylcyclopropanes have been found to possess utility as general inhalation anesthetics: 1-bromo-1,2-difluoro-2-methylcyclopropane and 1-bromo-1-fluoro-2-methylcyclopropane.