تفاعل #470029
ord-139d83934bc14e81a5ff610a6b8ab1b4
معادلة التفاعل
الكواشف
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المذيبات
ظروف التفاعل
الظروف التفصيلية
See reaction.notes.procedure_details.
المعالجة
- 1درجة الحرارةcooled
الإجراء التجريبي
In a nitrogen atmosphere, 5 ml of tetrahydrofuran and 0.1 ml of dibromoethylene were added to 3.4 g of metallic magnesium, the mixture was ice-cooled, and 30.0 g of 2,5,5-trimethyl-2-(2-bromoethyl)-1,3-dioxane and 75 ml of tetrahydrofuran were added dropwise to that mixture simultaneously over 1.5 hours. After completion of the dropping, the mixture was stirred for 1 hour with ice cooling and further at room temperature for 30 minutes to give bromo[2-(2,5,5-trimethyl-1,3-dioxan-2-yl)ethyl]magnesium (1.16 mol/l, tetrahydrofuran solution).