- CHLOROSULFONATION OF 9-ARYL 3,3,6,6-TETRAMETHYLOCTAHYDROXANTHEN-1,8-DIONES
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The 9-aryl-3,3,6,6-tetramethyloctahydroxanthendiones (4-20) react with chlorosulfonic acid to give the sulfonyl chlorides (25, 34, 43, 53, 55, 59, 63, and 65).The xanthendione (7) from m-anisaldehyde afforded the bis-sulfonyl chloride (30).The products we
- Cremlyn, Richard J.,Saunders, David
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- Chemistry of dimedone--Structures of aldehyde-dimedone adducts
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Novel features in the structures and stability of products of the hoary reaction of aldehydes with dimedone are described.Dimedone and cinnamaldehyde afford the bisdimedonyl derivative 3 or the perhydrochroman 5, while 4-dimethylaminocinnamaldehyde afford
- Nagarajan, K,Shenoy, S J
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