3-Methyl-2-buten-1-OL → 3,3-Dimethylallylglycidyl ether

To a solution of dimethylallyl alcohol (17.3 g, 20.5 mL, 0.2 mol) in dry THF (200 mL), sodium hydride (4.8 g, 0.2 mol) was added in portions and the mixture was stirred at room temperature for 1 hour. Epibromohydrin (27.4 g, 17.12 mL, 0.2 mol) was added to this reaction mixture dropwise and the mixture was stirred at room temperature for 24 hours. THF was removed on a rotary evaporator and the residue was taken up in ether and filtered. The ether solution was concentrated on a rotary evaporator and the brown oil obtained was distilled under vacuum to yield the title product. bp. 93-94° C./10 mm. Yield: 17.2 g (60.5%). 1H NMR (CDCl3) δ1.68 and 1.75 (s, 6H, CH3), 2.61 and 2.88 (dd,2H, oxirane CH2), 3.17 (m, 1H, oxirane CH), 3.38 and 3.7 (m, 2H, CH2OCH2CH), 4.05 (m, 2H, CH2OCH2CH), 5.35 .(m, 1H, >C═CH).

1. stirringthe mixture was stirred at room temperature for 24 hours
2. customTHF was removed on a rotary evaporator
3. filtrationfiltered
4. concentrationThe ether solution was concentrated on a rotary evaporator
5. customthe brown oil obtained
6. distillationwas distilled under vacuum

ORDレコード

ord-8a7ea803b1804dc29aa8ae7823c0926e

出典データセット

uspto-grants-2004_03

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US06699458B2