By Manuel Miro Jodral
The booklet contains present wisdom on Illicium verum (star anise) and Pimpinella anisum (aniseed), major advertisement species wealthy in anetol. It additionally analyzes Foeniculum vulgare (fennel) and different species of Pimpinella (P. significant, P. peregrina and P. saxifraga). This quantity incorporates a botanical, chemical, pharmacological, and healing survey of those species, and a evaluate of conventional makes use of. It covers cultivation, harvesting, drying, garage, and yield, in addition to monetary value and industry traits. The e-book is efficacious for college professors and scholars, sanitary execs, investigators, and researchers operating with fragrant and medicinal crops.
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Extra resources for Illicium, Pimpinella and Foeniculum
These compounds occur so far in only I. tashiroi and I. anisatum. Taking their biosynthesis into consideration, however, other Illicium species should elaborate illicinone E-related compounds. 5. Illicinone E was reduced with NaBH4-CeCl3 (Luche, 1978) to afford two alcohols, 79a and 79b, which were readily separated by silica gel chromatography. 5 Prenylated C6-C3 compounds 37–40 occurring in I. tashiroi and I. 6 Prenylated C6-C3 compounds 41–45 isolated from I. tashiroi and I. anisatum catalyst to yield 80a and 80b, which in turn were converted into p-bromobenzoyl derivatives 81a and 81b, respectively, with p-bromobenzoyl chloride-pyridine.
Finally, NOE experiments could readily make a stereochemical difference to C-2 between 72 and 75. 12, and the spectral data of 77 were identical with those of one of two products that were obtained by NaBH4 reduction of (2R)-2,3-dihydroxyillicinone E (72). 1993) but also illicinone E (68) and its analogues 69–78, which contain the methylenedioxy group in the molecule. fm Page 40 Thursday, May 6, 2004 1:07 PM 40 Illicium, Pimpinella, and Foeniculum O O OH OH O 46 48 1. NaBH4 H2 + 4 O + 5% Pd-C EtOAc 2.
1994). Another sesquineolignan (103) has been isolated from the aerial part of I. , 1997). The compound 103 is of biosynthetic interest because it is derived from three 4-allylphenolchavicol units linked together by both ortho, ortho-coupling and ortho, para-coupling. The first ortho, ortho-linkage occurs by standard oxidative coupling of the two molecules’ chavicol radical (105), yielding magnolol (82). 7) then arises from oxidative coupling of magnolol radical (104), with a further molecule of chavicol leading to the formation of a trimer, which is unable to regain aromaticity at the central ring, thereby resulting in the formation of the second ether linkage between the central and right-hand rings by intramolecular Michael-type addition of the hydroxyl anion to the 5,6-double bond of the central ring (Sy and Brown, 1996).