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A Concise and Convenient Synthesis of DL-proto-Quercitol and DL-gala-Quercitol via Ene Reaction of Singlet Oxygen Combined with [2 + 4] Cycloaddition to Cyclohexadiene.
Photooxygenation of 1,4-cyclohexadiene afforded hydroperoxy endoperoxides 3 and 4 in a ratio of 88:12. Reduction of 3 with LiAlH(4) or thiourea followed by acetylation of the hydroxyl group andExpand
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One-pot synthesis from 1,4-cyclohexadiene of (±)-1,4/2,5-cyclohexanetetrol, a naturally occurring cyclitol derivative
Abstract SeO 2 -catalyzed direct hydroxylation of 1,4-cyclohexadiene with two molar equivalents of 30% H 2 O 2 afforded (±)-1,4/2,5-cyclohexanetetrol, a naturally occurring cyclitol derivative, asExpand
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Relationship between chemical structure and antioxidant activity of luteolin and its glycosides isolated from Thymus sipyleus subsp. sipyleus var. sipyleus
One triterpenic acid (ursolic acid), one phenolic acid (rosmarinic acid), and four flavonoids (luteolin, luteolin 7-O-(6”-feruloyl)-β-glucopyranoside, luteolin 5-O-β-glucopyranoside, and luteolinExpand
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An Alternative Synthesis of the Dopaminergic Drug 2-Amino-1,2,3,4-tetrahydronaphthalene-5,6-diol (5,6-ADTN)
Racemic 2-amino-1,2,3,4-tetrahydronaphthalene-5,6-diol (5,6-ADTN; 4) was synthesized from 5,6-dimethoxynaphthalene-2-carboxylic acid (14) in four steps (60% overall yield; Scheme). The crucial stepsExpand
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Alternative and Straightforward Synthesis of Dopaminergic 5-Methoxy-1,2,3,4-tetrahydronaphthalen-2-amine
Abstract 5-Methoxy-1,2,3,4-tetrahydronaphthalen-2-amine was synthesized from 2-naphthoic acid in six steps with an overall yield of 27%. Following the reaction sequence, bromination, esterification,Expand
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Studies on the Mechanism of Base-Catalyzed Decomposition of Bicyclic Endoperoxides
Kornblum and Delamare showed the first decomposition of dialkyl peroxides by base-catalyzed rearrangement. They reported that 1-[1-(tert -butylperoxy)ethyl] benzene 1 gives acetophenone andExpand
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