1H-Pentafluoropropene, as a 95 : 5 mixture of cis- and trans-isomers, reacts with bromine in light to give a 75 : 25 mixture of the threo- and erythro-dibromides which on dehydrobromination affords a mixture of cis- and trans-1-bromo-1,2,3,3,3-pentafluoropropene. Photochemical ...
(II) CH 2 ═CF 2 to produce a reaction product comprising a compound of formula (III) CHXFCH 2 CXF 2 , wherein each X is independently selected from the group consisting of chlorine, bromine and iodine; and (b) exposing said compound of formula (III) to reaction conditions effective ...
Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, and epoxides. May accumulate static electrical charges, and ...
1-BROMO-2-METHYLPROPENE, with the chemical formula C4H7Br and CAS registry number 3017-69-4, is a compound known for its applications in various chemical processes. This colorless liquid, also referred to as 2-Methyl-1-bromopropene, is characterized by its bromine and methyl functional groups...
in ether in the presence alkenes leads to cyclopropanes, e g.(6), apparently derived by trapping of an intermediate carbene (4); in the case of (5, X = Br), the precursor of the carbene, a cyclopropene (1, X=Y=Cl, Z=Me), may be trapped by addition of bromine at −90°C....
xylyl and naphthyl, aralkyl groups such as benzyl and phenylethyl, and substituted monovalent hydrocarbon groups wherein some or all of the hydrogen atoms in the foregoing unsubstituted monovalent hydrocarbon groups are replaced by halogen atoms such as chlorine, fluorine and bromine, cyano groups or...
is then used for step (b) of the process. Unreacted CFC-216cb and intermediate products such as HCFC-226ca may be recycled to step (a) of the process. In one embodiment of the process of the invention, the effluent from the reaction zone of step (a) is sent directly to step (b)...
Reaction of 1,2,3-triphenylcyclopropene with free bromine in solvents of variable polarityThe three-membered ring of 1,2,3-triphenylcyclopropene is retained during radical bromination and is opened during electrophilic bromination, in which connection the character of the solvent......
Hydrolysis and reductive elimination of 12 provided naphtho[b]cyclobutenone ( 13 ) and naphtho[b]cyclobutene ( 13 ), respectively. Naphtho[b]cyclopropene reacted with the different electrophiles like acetic acid, HCl, maleic acid, iodine, bromine, ethanol, and hydrogen afforded the corresponding...
and Xare each independently selected from the group consisting of fluorine, chlorine, bromine and iodine, to produce a reaction product comprising a compound of CFCH═CHX, wherein Xis as described above; and when Xis not fluorine, fluorinating the compound to produce 1,3,3,3-tetrafluoroprop...