Organometallics reaction with acetyl chloride

Apparently no attempts have been made to isolate Rf derivatives of the heavier alkaline metals, RfM (M = Na,K,Rb,Cs), although these organometallics are anticipated to exhibit interesting structural properties. Other attempts to derivatize 1,3,5-tris(trifluoromethyl)benzene have failed so far, because the three CFa groups strongly deactivate the phenyl ring toward electrophilic substitution. Accordingly, no reaction was observed with acetyl chloride and anhydrous AlCla (28). 

Ketones may be prepared in high yield from acyl chlorides and organomanganous iodides since these organometallic reagents attack ketones very slowly. Aldehydes are of intermediate reactivity, whereas esters are inert.The reaction of an a-monosubstituted acetyl chloride with Fe2(CO)9 is a mild general means of preparing symmetrical dialkyl ketones in fairly good yield (Scheme 8). ... 

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