155500-22-4

Upstream product

• 155499-82-4 2-(3'-carbo-tert-butoxypropyl)-1,4,5,8-tetraacetoxynaphthalene 
• 155499-84-6 2-(3'-carboxypropyl)-1,4,5,8-tetraacetoxynapthalene 
• 155499-80-2 5,8-diacetoxy-2-(3'-carbo-tert-butoxypropyl)-1,4-naphthoquinone 
• 155499-76-6 4-(5,8-Dihydroxy-1,4-dioxo-1,2,3,4-tetrahydro-naphthalen-2-yl)-butyric acid tert-butyl ester 
• 155499-74-4 (E)-4-(5,8-Dihydroxy-1,4-dioxo-1,2,3,4-tetrahydro-naphthalen-2-yl)-but-2-enoic acid tert-butyl ester 
• 155499-78-8 5,8-dihydroxy-2-(3'-carbo-tert-butoxypropyl)-1,4-naphthoquinone 
• 51694-22-5 ortho-nitrophenyl selenocyanate 
• 155499-85-7 2-(4'-hydroxybutyl)-1,4,5,8-tetraacetoxynapthalene 

Relevant academic research and scientific papers

Successive Michael reaction-sigmatropic rearrangement of naphthodiquinone with O-silylated ketene acetals leading to synthesis of cycloshikonin and structure-reactivity relationship for side chain of naphthazarins

Synthesis of cycloshikonin via successive Michael reaction-sigmatropic rearrangement of naphthodiquinone with O-silylated ketene acetals is described. The structure dependence of the reactivity of the side chain of intermediary naphthazarin derivatives ha