Isobutyryl fluoride

Isobutylene, reaction with chlorosul fonyl isocyanate, 46, 52 Isobutyryl fluoride, 45, 6 Isocyanates, acyl, derivatives of, 46, 17... 

Acyl fluorides and BF3 afford ketones with better regioselectivity than when AICI3 is used as the Lewis acid. The reaction of isobutyryl fluoride with 2-methylnaphthalene gives an excellent yield of the product shown in Eq. (31) [58]. 

Preparation by esterification of P-naphthol with isobutyryl fluoride in the presence of hydrogen fluoride at 0-40°, followed by Fries rearrangement of ester formed in situ [7802] at 60-100° [8267],... 

Iron tricarbonyl dieme complex, 57, 16 Isobutyl chloroform.ate, 59, 165 Isobutylene, 59, 164 Isobutyl fluoride, 5, 73 Isobutyryl chloride, 59, 29 Isocyanato acid chlotrides, from amino acids, 59, 200... 

Sodium salts of fluoroacids react with chlorine fluoride at —112 to —78°C to give explosively unstable fluoroacyl hypochlorites. Trifluoroacetyl hypochlorite and its pentafluoropropionyl, heptafluorobutyryl, difluoroacetyl and chlorodifluo-roacetyl analogues explode without fail if the partial pressure exceeds 27-67 mbar. Hexafluoroglutaiyl dihypochlorite explodes above — 10°C [1]. Of the 4 compounds prepared, acetyl, propionyl, isobutyryl and pivaloyl hypobromites, the 2 latter appeared stable indefinitely at —41°C in the dark, while the 2 former exploded unpredictably as isolated solids [2],... 

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