8 results about "Allylic alcohol" patented technology

The present invention relates to the field of organic synthesis, and more particularly to a method for the oxidation of allylic alcohols to α,β-unsaturated carbonyl compounds in the presence of a zirconium catalyst and a hydrogen acceptor.

The present invention relates to the field of organic synthesis and more specifically it concerns a process for the oxidation of a non-allylic alcohol into a carbonyl compound in a presence of zirconium catalyst and a hydrogen acceptor.

The present invention relates to the field of organic synthesis, and more specifically to a method for the rearrangement of epoxides to allylic alcohols in the presence of a zinc catalyst and two aminophenols.

The invention discloses a molybdenum-quinoline complex, a preparation method and a method for preparing a coupling product through allyl alcohol deoxidation coupling. The molybdenum-quinoline complex is prepared by mixing quinoline with substituent groups and a molybdenum source in a solvent according to a certain proportion. The complex is used for efficiently catalyzing deoxidation coupling of a compound with an allyl alcohol structure, harmful reagents such as halogen are not needed, the reaction safety is greatly improved, and the production cost is reduced.

The present invention relates to the synthesis of specific allylic alcohols having terminal carboxyl groups, based on an ethynylation step and a hydrogenation step in the presence of a Lindlar catalyst. These allylic alcohols are particularly useful to provide a route to the synthesis of isophytol or tocopherols having terminal carboxyl groups by very few reaction steps.

The application belongs to the technical field of organic synthesis, and discloses a method for synthesizing alkyl borate compounds by taking allyl alcohol as a substrate, which comprises the following steps: taking allyl alcohol shown in formula I and pinacol diboron as substrates, taking monovalent copper salt as a catalyst, and reacting in an organic solvent under the action of a base, a proton source and a ligand to obtain alkyl borate compounds shown in formula II according to the following reaction formula. In the application, monovalent copper is used to catalyze the coupling of pinacol diboron and allyl alcohol to form alkyl borate, the substrate range is widened, the use of noble metals and strong reducing agents is avoided, no excess metal waste is generated, the green chemistry concept is met, the reaction steps are significantly shortened, and the cost can be reduced.

Disclosed herein is a process for the oxidation of an allylic alcohol into an alpha,beta-unsaturated carbonyl compound in a presence of zirconium catalyst and a hydrogen acceptor.

The invention provides an immobilized BF3 catalyst, a preparation method thereof and a synthesis method of allyl glycidyl ether, and belongs to the technical field of supported catalysts. The synthesis method comprises the following steps: carrying out a ring-opening reaction on allyl alcohol and epoxy chloropropane to obtain an allyl alcohol chloride intermediate, and then carrying out a ring-closing reaction on the allyl alcohol chloride intermediate and sodium hydroxide to obtain the allyl glycidyl ether. The catalyst used in the ring-opening reaction is ion exchange resin loaded boron trifluoride, the active component trifluoroboric acid of the catalyst is not easy to lose through ion exchange resin immobilization, and the catalyst has relatively high specific surface area and stability and can be recycled. The solid-phase catalyst is friendly to equipment and simple in reaction post-treatment, and can provide a protonic acid center besides a lewis acid center provided by boron trifluoride, so that the activity and selectivity of the reaction are improved.