Results 201 to 210 of about 26,944 (259)
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C R C Critical Reviews in Food Science and Nutrition, 1976
Lactones represent another important class of flavor compounds that have been found in a wide variety of foods although traditionally they have been mainly associated with dairy products. This review summarizes their occurrences in foods along with their formation pathways, sensory properties, and isolation, identification, and synthesis techniques ...
Joseph A. Maga, Ira Katz
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Lactones represent another important class of flavor compounds that have been found in a wide variety of foods although traditionally they have been mainly associated with dairy products. This review summarizes their occurrences in foods along with their formation pathways, sensory properties, and isolation, identification, and synthesis techniques ...
Joseph A. Maga, Ira Katz
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American Journal of Contact Dermatitis, 1996
Sesquiterpene lactones are a large, diverse group of chemicals found in several plant families that cause allergic contact dermatitis. The biological, botanical, allergenic, and structural significance of sesquiterpene lactones is explored as well as the clinical characteristics of cutaneous reactions.
E M, Warshaw, K A, Zug
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Sesquiterpene lactones are a large, diverse group of chemicals found in several plant families that cause allergic contact dermatitis. The biological, botanical, allergenic, and structural significance of sesquiterpene lactones is explored as well as the clinical characteristics of cutaneous reactions.
E M, Warshaw, K A, Zug
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Synthesis of (+)-trans-Whisky Lactone, (-)-cis-Whisky Lactone, (+)-Cognac Lactone and (+)-Eldanolide
HETEROCYCLES, 1993(+)-trans-Whisky lactone (5) and (-)-cis-whisky lactone (8), (+)-cognac lactone (9) and (+)-eldanolide (10) were synthesized starting from levoglucosenone (1) in optically pure ...
Takashi Ehata +7 more
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Sesquiterpene Lactones as Allelochemicals
Journal of Natural Products, 2006Six new sesquiterpene lactones, annuolide H (3), helivypolides F, H-J (4, 11-13), and helieudesmanolide A (6), together with known compounds, were isolated from polar bioactive fractions of Helianthus annuus cv. SH-222 and Stella fresh leaf water extracts.
Macias, Francisco A. +5 more
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Preparation of lactones via tricarbonyliron–lactone complexes
J. Chem. Soc., Perkin Trans. 1, 1981A number of tricarbonyliron–lactone complexes have been prepared from vinyl oxirans by treatment with pentacarbonyliron. In certain cases two η3-allyl complexes were isolated from a single vinyl oxiran. Oxidation of the complexes by cerium(IV) ammonium nitrate in acetonitrile leads predominantly to β-lactones.
Gary D. Annis +3 more
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Resistance to Macrocyclic Lactones
Current Pharmaceutical Biotechnology, 2012Resistance to the macrocyclic lactones (MLs) has been confirmed or suspected in many target organisms and is a serious problem in some. For some species, such as parasitic nematodes of small ruminants, ML resistance has become severe enough to threaten effective worm control worm control.
Adrian J, Wolstenholme, Ray M, Kaplan
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ChemInform Abstract: CONVERSION OF LACTONE INTO LACTONE HEMITHIOACETAL AND SYNTHESIS OF ENOL LACTONE
Chemischer Informationsdienst, 1981M. OCHIAI +3 more
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Reaction of singlet oxygen with enamino lactones. Conversion of lactones to .alpha.-keto lactones
The Journal of Organic Chemistry, 1978Harry H. Wasserman, Jeffrey L. Ives
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