Chloromethyl Methyl Ether → HCID 21402946, compound

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Reaction Steps

A solution of chloromethyl methyl ether (40.2 g, 0.5 mole, freshly distilled) in dry tetrahydrofuran (80 ml) is prepared, and about 5 ml of that solution are added to a stirred mixture of magnesium turnings (12.0 g, 0.5 g - atom) and mercuric chloride (500 mg) in tetrahydrofuran (20 ml) until an exothermic reaction ensues. The flask is cooled to 0° ± 10° and the remainder of the chloromethyl methyl ether solution is added dropwise with thorough agitation. After completion of addition a solution of 10,11-dihydro-5H- dibenzo[a,b]cyclohepten-5-one (56.1 g 0.25 mole) in tetrahydrofuran is added dropwise. The reaction mixture is stirred overnight at room temperature and the complex is hydrolyzed with ice-cold ammonium chloride solution. The aqueous layer is extracted with ether (3 × 100 ml) and the combined extracts are washed with sodium chloride solution, dried and evaporated under reduced pressure to give 10,11-dihydro-5-methoxymethyl-5H-dibenzo[a,d]cyclohepten- 5-ol as an oil with b.p. 143° -144° C/0.05 mm, γmaxfilm : 3500 cm-1, 2820 cm-1.

Provenance & Evidence