The synthesis of cyclopropyl analogues of precocene I
β Scribed by John Mann; Peter D. Kane
- Book ID
- 104228935
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- French
- Weight
- 193 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
β¦ Synopsis
A new, short synthesis of precocene I is described together with the syntheses of two cyclopronyl analogues.
One of these comnounds showed interesting biological activity against the bean aphid, &his fabae.
Precocenes I and II (la and lb) were first isolated from the common bedding
π SIMILAR VOLUMES
A new synthesis of spirobenzopyran has been accomplished by Friedel-Crafts reaction of various m-dihydroxybenzenes and cycloalkylidene acetic acid in the presence of a Lewis acid. Chromones, flavones and related heterocyclic compounds belonging to benzopyran family are widely distributed in nature a
All four stereoisomers of precocene I 3,4-dihydrodiol have been prepared and their absolute configurations assigned by the exciton chirality method. The chromene derivatives, precocene I (11 and 11(2), which occur naturally in some Ageratum species, induce premature metamorphosis or sterility when