- Manganese(III)-mediated transformations of phloroglucinols: A formal oxidative [4 + 2] cycloaddition leading to bicyclo[2.2.2]octadiones
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Manganese(III)-mediated oxidative transformations of dearomatized phloroglucinol (1,3,5-trihydroxybenzene) derivatives are reported. A number of cyclization modes have been observed, including polycyclization to afford bicyclo[2.2.2]octadiones via a forma
- Mitasev, Branko,Porco Jr., John A.
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supporting information; experimental part
p. 2285 - 2288
(2009/11/30)
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- Prenylation of Isocaeroin: Synthesis of Vismiaphenone-C
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2,6-Dihydroxy-4-methoxybenzophenone on prenylation with 2-methylbut-3-en-2-ol in the presence of BF3-etherate gives a dichroman , vismiaphenone-C (1), 8-benzoyl-7-hydroxy-5-methoxy-2,2-dimethyl-3,4-dihydro-2H-1-benzopyran (6) and an oil which could not be characterised. 2,4,6-Trihydroxy-3,5-diprenylbenzophenone (4) on partial methylation gives 6-hydroxy-2,4-dimethoxy-3,5-diprenylbenzophenone (3), 1 and 2,4-dihydroxy-6-methoxy-3,5-diprenylbenzophenone (2).
- Pathak, V. P.,Saini, T. R.,Khanna, R.N.
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p. 571 - 572
(2007/10/02)
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