441325-60-6Relevant articles and documents
Synthesis of the reported structure of the bisbenzoquinone lanciaquinone, isolated from Maesa lanceolata
Guillonneau, Loic,Taddei, David,Moody, Christopher J.
supporting information; experimental part, p. 4505 - 4508 (2009/05/27)
(Chemical Equation Presented) Lanciaquinone, isolated from Maesa lanceolate, was originally assigned as a bisbenzoquinone with a C 14-chain linking the two quinone rings. A synthesis of the reported structure, in which the key step is a double Clalsen rearrangement, suggests that the structure of the natural product needs to be revised.
PROCESS FOR PREPARATION OF ESCULETIN COMPOUNDS, ESCULETIN COMPOUNDS AND INTERMEDIATES THEREOF, AND USE OF BOTH
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Page/Page column 16, (2010/01/31)
An esculetin compound, an intermediate thereof, a process for manufacturing an esculetin compound, and an antifungal composition for agriculture and horticulture and an herbicide comprising an esculetin compound or an intermediate thereof are provided. The process for manufacturing an esculetin compound is a low-cost, high-yield, and industrially practicable process, and comprises the following step.A process for manufacturing an esculetin compound of the formula (2): characterized by cyclizing a trihydroxybenzaldehyde compound of the formula (1): in an aprotic polar solvent in the presence of a weak base, with acetic anhydride or the like.