swrpnary Starting from alcohol 3, a stereospecific synthesis of carboxylic acid 1 is described. This acid 1 is a key lntermedlate in the total synthesis of aJugarins and its conversion into t 4-epi aJugarin is reported. A number of clerodane dlterpenes, as represented by aJugann 11a2, (I) and clerod
Stereospecific total synthesis of ajugarin-IV
β Scribed by Andrew S. Kende; Bruce Roth; Isao Kubo
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- French
- Weight
- 259 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
A stereospecific sequence from the octalindlone 2 leads In 21 steps to the new lnsecttcrde ajuqarin-IV. Formation of the butenohde portion is conveniently achteved from acid 21 by successive use of the reaqents trts(tr~methylsiloxy)ethylene and ketenyhdenetrtphenyl-phosphorane.
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