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Coumarins II. structures of columbianadin and columbianin

✍ Scribed by Robert E. Willette; Taito O. Soine


Publisher
John Wiley and Sons
Year
1964
Tongue
English
Weight
465 KB
Volume
53
Category
Article
ISSN
0022-3549

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πŸ“œ SIMILAR VOLUMES


Coumarins IV. Coumarins of pteryxia tere
✍ B. Eichstedt Nielsen; T. O. Soine πŸ“‚ Article πŸ“… 1967 πŸ› John Wiley and Sons 🌐 English βš– 446 KB

The ether extract of tbe root of Pteryxia terebinthina var. californica (Coult. and Rose) Mathias, in addition to osthol, anomalin (I), and pteryxin (111), afforded two new coumarins: 3'(S),4'(S)-3'-angeloyloxy-4'-acetoxy-~',4'-dihydroseselin (IV) and ## 3'(S),4'(S)-3'-angeloyloxy-4'-senecioyloxy-3

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Synthesis and structure of novel 3,4-ann
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## Abstract magnified image Condensation of 4‐chloro‐2‐oxo‐2__H__‐chromene‐3‐carbonitrile (**1**) with heteroarylamines **2a‐d** in acetonitrile containing a catalytic amount of triethylamine followed by spontaneous intramolecular cyclization gave the novel coumarin derivatives **3a‐d**, respectiv