PROBLEM TO BE SOLVED: To provide a method for producing an α,β-unsaturated ketone having the advantages of avoiding high-boiling point byproduct formation, scarcely forming aldehyde-aldehyde consecutive product, scarcely forming ketone-ketone consecutive product, high space time yield, and a small-...
(AIBN) or benzoyl peroxide (BPO) as initiator; oxidizing in the organic solvent; dehydrating through dehydrant; separating and purifying to obtain the alpha, beta-unsaturated ketone; improving reacting receiving rate; reducing manufacturing cost; possessing mild reacting condition; using little catalyst...
The invention relates to an alpha, beta-unsaturated ketone compound containing a 1,2,4-oxadiazoles heterocycle, the structure of which is as shown in general formula 5, wherein R1 is hydrogen, methyl or chlorine; R2 is methyl, chlorine or bromine; R3 is methyl or ethyl; R4 is para-...
Acylzirconocene Chloride as an "Unmasked" Acyl Anion: Enantioselective 1,2-Addition to alpha,beta-Unsaturated Ketone Derivatives. The chiral monodentate phosphane ligand (R)-MOP facilitated the first enantioselective nucleophilic 1,2-addition of an "unmasked" acyl anion to a carbonyl group in the ...
3. The formation of an alphabeta-unsaturated ketone on reduction of bacilysin with chromous chloride also showed that the epoxide was alphabeta to the keto group. 4. The optical-rotatory-dispersion curve of bacilysin showed a positive... JE Walker,EP Abraham - 《Biochemical Journal》 被引量...
alpha,beta-unsaturated ketonealpha-keto-delta-lactoneRing closing metathesis of N,N -diallylanilines and a related 1,2-dihydroquinoline, catalysed by Grubbs... P Evans,Ronald Grigg a,Michael Monteith b - 《Tetrahedron Letters》 被引量: 165发表: 1999年 Synthesis and Biological Evaluation of Sugar...
Rearrangement of α-Aminoketones during Clemmensen Reduction. VIII. The Fate of an Eight-membered Ring1,2 It has been shown that an eight-membered ring α-aminoketone in which the carbonyl and amino groups are homocyclic undergoes Cα-N cleavage under Clemmensen reduction conditions, and that ...
NOVEL ALPHA, BETA-UNSATURATED KETONE COMPOUND 优质文献 相似文献Reaction of .beta.-heteroatom-substituted .alpha.,.beta.-unsaturated acylsilanes with ketone enolates: a new [3+2] annulation based on the Brook rearrangement Publication » Reaction of .beta.-heteroatom-substituted .alpha.,.beta.-un...
The hydrogen transfer mechanism of cofactor reduction and recycling processes in the yeast reduction of α,β-unsaturated ketone was studied by using quantitative isotope tracing close to natural abundance measured by 2H NMR. In the reaction, the active cofactor is NADPH. The cofactor-transferred hydr...
The Key Gold: Enhanced Platinum Catalysis for the Selective Hydrogenation of α, β-Unsaturated KetoneAuPt alloy nanoparticles (NPs) were facilely synthesized with oleylamine as the stabilizing ligand and characterized by high-resolution ... Y Xu,L Liu,H Chong,... - 《Journal of Physical Chemist...