cas 727-81-1, COENZYME Q1 | Articles data

Articles about 727-81-1Total 10 be found

A convenient two-step synthesis of Coenzyme Q1
A convenient method for the preparation of Coenzyme Q1 from cheap and readily available 3,4,5-trimethoxytoluene is developed. Coenzyme Q1 is synthesized in a moderate yield by a two-step procedure involving the key reaction of an allyl bromide with Coenzyme Q0 through a redox chain reaction. The reaction is efficient and can be used for the synthesis of other Coenzyme Q compounds.
Lu, Bin,Qiu, Yong-Fu,Qi, Shi,Wang, Jin
p. 553 - 556
(2019/11/29)

New efficient synthesis of ubiquinones
A strategy for the ecofriendly and high-yielding synthesis of ubiquinones starting from simple materials and using mild conditions is reported. CoQ1, CoQ2, CoQ3, and CoQ9 were prepared. Copyright Taylor & Francis Group, LLC.
Bovicelli, Paolo,Borioni, Giorgio,Fabbrini, Danilo,Barontini, Maurizio
p. 391 - 400
(2008/04/01)

Radical-scavenging polyphenols: New strategies for their synthesis
New strategies for the synthesis of polyphenols, compounds with antioxidant properties contained in every kind of plants, are discussed. Syntheses of different classes of polyphenols, namely ubiquinones, present in many natural systems in which electron-transfer mechanisms are involved, hydroxytyrosol, one of the main components of the phenol fraction in olives, and flavonoids, widespread in the plant kingdom, were approached by simple and environmentally sustainable methods.
Bovicelli, Paolo
p. 1703 - 1710
(2008/03/11)

A novel and convenient synthesis of coenzyme Q1
A convenient and efficient synthetic route to Coenzyme Q1 (6) starting from 3,4,5-trimethoxytoluene (1) is described. The key features of this synthesis include the Diels-Alder reaction of 2,3-dimethoxy-1,4-benzoquinone (3) with cyclopentadiene and the introduction of a C5 side chain to 4,5-dimethoxy-2-methyltricyclo[6.2.1.02,7]undeca-4,9-diene-3,6-dione (4) under mild conditions, (6) was obtained in overall 60% yield.
Lu, Liang,Chen, Fener
p. 4049 - 4053
(2007/10/03)

A new synthetic route to substituted quinones by radical-mediated coupling of organotellurium compounds with quinones
Carbon-centered radicals generated from the corresponding organotellurium compounds react with a variety of quinones under photo-thermal conditions to give the monoaddition product in moderate to excellent yield. The reaction can be used for the synthesis of polyprenyl quinoid natural products and C-glycosides.
Yamago, Shigeru,Hashidume, Masahiro,Yoshida, Jun-Ichi
p. 6805 - 6813
(2007/10/03)

Radical-mediated synthesis of substituted quinones with organotellurium compounds
Carbon-centered radicals generated from the corresponding organotellurium compounds react with a variety of quinones under photo-thermal conditions to give the monoaddition product in good to excellent yield. The reaction can be used for the synthesis of polyprenyl quinoid natural products.
Yamago, Shigeru,Hashidume, Masahiro,Yoshida, Jun-Ichi
p. 1234 - 1235
(2007/10/03)

COMPLEXES OF COBALT(III) WITH DERIVATIVES OF OXIMES AS CATALYSTS OF ELECTRON TRANSFER FROM THE COMPONENTS OF THE RESPIRATORY CHAIN
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Novodarova, G.N.,Kiseleva, L.L.,Tuvin, M.Yu.,Stetsenko, A.I.,Sharova, L.P.,Vol'pin, M.E.
p. 1993 - 1997
(2007/10/02)

Allylation of Quinones with Allyltin Reagents
Lewis acid (BF3) catalyzed allylation of quinones with allyl- (2a), 2-methyl-2-propenyl- (2b), trans-2-butenyl- (2c,d), 3-methyl-2-butenyl- (2e,f), and trans-cinnamyltrialkyltin (2g) gives the corresponding allylhydroquinones with high regioselectivity.Vitamin K2(5) (7) and coenzyme Q1 (9) were prepared in yields of 78 and 75percent, respectively.These reactions appear to proceed through allylquinol intermediates which undergo rearrangement under the influence of BF3.The success of this synthesis of vitamin K2(5) and coenzyme Q1 depends on the fact that the reaction of 3-methyl-2-butenyltin with quinones occurs at the α carbon of the allylic system.
Naruta, Yoshinori
p. 3774 - 3783
(2007/10/02)