Add time:09/24/2019 Source:sciencedirect.com
2,3-Dimethylene-2,3-dihydrothiophene (the analogue of o-xylylene) is generated in situ from 3-(trimethylanunoniuinmethyl)-2-(trimethylsilylmethyl) thiophene iodide (7) by a fluoride induced 1,4-elimination process, and is identified by several [4+2] cycloadducts obtained in high yields.
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