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- W2048453085 abstract "In analogy to earlier work, the acid-catalysed photocyclisation of 3-[2-(dioxolan-2-yl)benzyl]chromone (II; XX = O·CH2·CH2·O) to give 6,6-ethylenedioxy-5aα6,11,11aα-tetrahydro-12H-benzo[b]xanthen-12-one (III) and its trans-(5aαH,11aβH)isomer (IV) has been effected. It is suggested that this photocyclisation process will be of general synthetic utility." @default.
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- W2048453085 date "1972-01-01" @default.
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- W2048453085 title "Experiments on the synthesis of tetracyclines. Part XII. Extension of the acetal photocyclisation process" @default.
- W2048453085 doi "https://doi.org/10.1039/p19720001103" @default.
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