Methyl iodide → 3-(4-Chloro-benzenesulfonyl)-3-methyl-dihydrofuran-2-one

Beteiligte Stoffe

Reaktionsschritte

To a mixture of 3-(4-chlorobenzenesulfonyl)-dihydro-furan-2-one (0.599 g; 2.29 mmol) in DMF (5 mL) at 0-5° C. was added portionwise NaH (0.23 g of a 60% dispersion in mineral oil; 5.74 mmol). The mixture stirred 30 minutes and iodomethane (0.43 mL; 6.89 mmol) was added. The reaction warmed to room temperature while stiffing overnight and was quenched with water. The solid was filtered and dried in vacuo to provide the desired product. Wt 0.488 g. 1H NMR (CDCl3) δ 7.82 (d, 2H), 7.56 (d, 2H), 4.56 (m, 1H), 4.39 (m, 1H), 3.32 (m, 1H), 2.42 (m, 1H), 1.51 (s, 3H).

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