The methylenation of catechols
✍ Scribed by Bonthrone, W.; Cornforth, J. W.
- Book ID
- 120295750
- Publisher
- The Royal Society of Chemistry
- Year
- 1969
- Tongue
- English
- Weight
- 364 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0022-4952
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## Abstract The low temperature addition of dilithiomethylphenyl sulfone to 2,3‐__O__‐isopropylidene‐D‐erythronolactone, and to 5‐__O__‐(__tert__‐butyldimethylsilyl)‐2,3‐__O__‐isopropylidene‐D‐ribofuranolactone gives the lactols 2 and 3a, respectively. Dehydration of lactol 2 in the presence of bor
A re-examination of the methylenation reaction of 1-hydroxy-2-mercapto-, 1,2-dihydroxy-and 1,2-dimercapto-substituted benzenes by bromochloromethane with cesium carbonate shows that these substrates give mixtures of five-and ten-membered benzocondensed heterocyclic compounds and in some cases even d