Acetyl chloride → 1,1-Cyclohexanediacetic Anhydride

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

Acetyl chloride (35 m, 492 mmol) was added to 1,1-cyclohexanediacetic acid (25 g, 125 mmol) in a round bottom flask and the suspension was heated for 3 hrs. at 60° C. using an oil bath. After about 15 min. the suspension became clear. The reaction was attached to a short path condenser and was heated to 100° C. under vacuum to remove volatile by products. 1HNMR indicated no starting diacid and GC indicated >99% purity. Upon cooling to room temperature the anhydride solidified. 1H NMR (CDCl3): 62.65(s,4H); 1.45(m,10H)

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