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A structural isomer of peltogynol trimethyl ether; 3-hydroxycoumaran-2-spiro-3′-isochromans, a new class of synthetic leuco-anthocyanidins.

✍ Scribed by J.W. Clark-Lewis; D.C. Skingle

Publisher: Elsevier Science
Year: 1966
Tongue: French
Weight: 132 KB
Volume: 7
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)76036-9

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✦ Synopsis

Reduction of the flavcme (Is), m.p. 287', with lithium aluminium hydride in ether has been found to yield 3-hydrolrycoumeran-2-m J'-isoohroman (3_hsdM~-4,5,5',6'-tetrahsdro_2,~benzo~~-5-~ 6t-3',41-benao-21H-pyran)(IIa), m.p. 171-172', and the 7-methaxyflavone (lb), m.p. 291-292', and trimethaay snalogue (Ic), m.p. 322', were similarly converted into the spirans (III, and IIc), m.ps. 169-170'

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A structure isomer of peltigynoltrimethyl ether; 3-hydroxy-2-spiro-3-isochromans, a new class of synthesis leucoanthocyanidins

✍ J.W. Clark-Lewis; D.C. Skingle 📂 Article 📅 1966 🏛 Elsevier Science 🌐 French ⚖ 41 KB