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Please login to access the full content or check if you have access via Method 1: Allenyl Esters by Wittig Reactions of Monoalkylketenes

DOI: 10.1055/sos-SD-023-00535

Tidwell, T. T.Science of Synthesis, (200623590.

Ketenes 128 formed in situ by dehydrochlorination of alkanoyl chlorides react with the phosphoranes 129 in Wittig reactions to form allenyl esters 130 (Scheme 40).[‌97‌,‌98‌] The allenyl esters may be converted into the corresponding acids, which can be cyclized to butenolides with silver nitrate.[‌98‌]

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Me Me 88 [‌88‌]

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