| 摘要 |
<p>Allyl and propargyl ethers of the formula X-C(R1)(R2)-O-C(CH3)(R3)-OCH3 (I), wherein X is an ethynyl or vinyl group, R1 is methyl or ethyl, R2 is a saturated or unsaturated linear or cyclic aliphatic hydrocarbon residue and R3 is methyl or ethyl, a method for their preparation and their use in the manufacture of beta-ketoallenes, alpha,beta-unsaturated carbonyl compounds and gamma,delta-unsaturated ketones.</p> |
