echinochrome-a and squaric-acid

echinochrome-a has been researched along with squaric-acid* in 1 studies

Other Studies

1 other study(ies) available for echinochrome-a and squaric-acid

Article	Year
Squaric acid ester-based total synthesis of echinochrome A. The Journal of organic chemistry, 2002, Mar-08, Volume: 67, Issue:5 The total synthesis of echinochrome A is described. Both key intermediates 5 and 8 were efficiently prepared from diisopropyl squarate 7. Nucleophilic addition of aryllithium 8 to 5, followed by thermal ring-expansion/cyclization of the 1,2-adduct 4, furnished hydroquinone 3. Oxidation and full deprotection of 3 gave the title compound. Topics: Animals; Catalysis; Chromatography, Thin Layer; Cyclization; Cyclobutanes; Esters; Molecular Structure; Naphthoquinones; Nuclear Magnetic Resonance, Biomolecular; Sea Urchins	2002

Article

Year

Squaric acid ester-based total synthesis of echinochrome A.

The Journal of organic chemistry, 2002, Mar-08, Volume: 67, Issue:5

The total synthesis of echinochrome A is described. Both key intermediates 5 and 8 were efficiently prepared from diisopropyl squarate 7. Nucleophilic addition of aryllithium 8 to 5, followed by thermal ring-expansion/cyclization of the 1,2-adduct 4, furnished hydroquinone 3. Oxidation and full deprotection of 3 gave the title compound.

Topics: Animals; Catalysis; Chromatography, Thin Layer; Cyclization; Cyclobutanes; Esters; Molecular Structure; Naphthoquinones; Nuclear Magnetic Resonance, Biomolecular; Sea Urchins

2002