Thermal cycloaddition reaction of symmet
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Jiaxi Xu; Sheng Jin
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Article
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1999
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John Wiley and Sons
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English
⚖ 193 KB
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Symmetrical and unsymmetrical ␣-diazo-b-diketones undergo thermal Wolff rearrangements to generate ␣-carbonylketenes to participate as dienes in Diels-Alder reactions with 4-aryl-2-methyl-2,3-dihydro-1,5-benzothia/diazepines to give, where applicable, regiospecific cycloadducts, 4a,5,6,12tetrahydro