Preparation and Reactions of Thiazole-fused 3-Sulfolenes. Useful Precursors to o-Dimethylene Thiazoles |
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摘 要: | Thiazole-fused 3-sulfolenes 6 and 7 have been efficiently prepared from 4-bromo-3-sulfolanone 5 in one step. These 3-sulfolenes react as synthetic equivalents to o-dimethylene thiazoles.
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