Lewis acids in the synthesis of naphthoquinonylbenzo[g]chromenediones, derivatives of mesocentroquinone, a metabolite of the sea urchins Mesocentrotus nudus and Strongylocentrotus intermedius
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引用次数: 0
Abstract
An approach was developed for the synthesis of naphthoquinonylbenzo[g]chromenedions, derivatives of mesocentroquinone, a metabolite of the sea urchins Mesocentrotus nudus and Strongylocentrotus intermedius. The key stage in the developed approach is the previously undescribed heterodiene condensation of 2-oxo-3-alkylidene- and 3-alkenyl-2-hydroxy-1,4-naphthoquinones formed during dehydrobromination of the corresponding 3-(1-bromoalkyl)-2-hydroxy derivatives in the presence of Lewis acid (SnCl4).
期刊介绍:
Publishing nearly 500 original articles a year, by leading Scientists from Russia and throughout the world, Russian Chemical Bulletin is a prominent international journal. The coverage of the journal spans practically all areas of fundamental chemical research and is presented in five sections:
General and Inorganic Chemistry;
Physical Chemistry;
Organic Chemistry;
Organometallic Chemistry;
Chemistry of Natural Compounds and Bioorganic Chemistry.