Science of Synthesis

Tidwell, T. T., Science of Synthesis, (2006) 23, 571.

Improved procedures for the preparation of monoalkylketenes include the pyrolysis of propanoic anhydride to form methylketene (‌2‌) (see Section ‌23.14.1.1.2‌),[‌37‌] the dehydrohalogenation of butanoyl chloride to generate ethylketene (‌3‌) for in situ stereoselective reactions (see Section ‌23.14.1.1.4.1‌),[‌38‌–‌46‌] the dehydrochlorination of propanoyl chloride for in situ stereoselective dimerization (see Section ‌23.14.1.2.6‌ ),[‌47‌] and dehalogenation of 2-bromopropanoyl bromide by zinc for conversion into the dimer (see Section ‌23.14.1.1.6‌).[‌48‌,‌49‌]

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References

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• 8.Meeeee-Meee, (8888) 8/8, 88.
• 8.Meeeee-Meee, (8888) M 88-8, 8888.