| 2 | Author
| JohnL. Ingham | Requires cookie* | | Title
| Induced Isoflavonoids from Fungus-Infected Stems of Pigeon Pea ( Cajanus cajan)  | | | Abstract
| Four antifungal isoflavones [7-hydroxy-4'-methoxy-(l) ; 5,7,4'-trihydroxy-(2) ; 5,7,2',4'-tetra-hydroxy-(3) ; 5,2',4'-trihydroxy-7-methoxy-(4) ] and one isoflavanone [ (5,2'-dihydroxy-7,4'-dimeth-oxy-(7)] have been isolated from the fungus-infected stems of C ajanus cajan . A sixth compound has been provisionally identified as 5,2'-dihydroxy-7,4'-dimethoxyisoflavone (5). The structure of 5,2'-dihydroxy-7,4'-dimethoxyisoflavanone (cajanol) was confirmed by synthesis from ferreirin (S^^'-trihydroxy^'-methoxyisoflavanone). | | |
Reference
| (Z. Naturforsch. 31c, 504 [1976]; received August 9 1976) | | |
Published
| 1976 | | |
Keywords
| Leguminosae, Cajanus, Isoflavone, Isoflavanone, Phytoalexin | | |
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| default:Reihe_C/31/ZNC-1976-31c-0504.pdf | | | Identifier
| ZNC-1976-31c-0504 | | | Volume
| 31 | |
4 | Author
| JohnL. Ingham, PaulM. Dewick | Requires cookie* | | Title
|  | | | Abstract
| In response to fungal inoculation the leaves of Trifolium arvense accumulate the known isoflavonoid phytoalexins, medicarpin, maackiain, sativan, vestitol, and isovestitol. A previously undescribed isoflavan derivative (arvensan; 7,2'-dimethoxy-4'-hydroxyisoflavan) is also produced by this species. The identification and synthesis of arvensan is described. | | |
Reference
| (Z. Naturforsch. 32c, 446 [1977]; received February 25 1977) | | |
Published
| 1977 | | |
Keywords
| Leguminosae, Trifolium, Isoflavans, Pterocarpans, Phytoalexins | | |
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| default:Reihe_C/32/ZNC-1977-32c-0446_n.pdf | | | Identifier
| ZNC-1977-32c-0446_n | | | Volume
| 32 | |
5 | Author
| JohnL. Ingham | Requires cookie* | | Title
| Flavonoid and Isoflavonoid Compounds from Leaves of Sainfoin  | | | Abstract
| Phytoalexins The 5-deoxyisoflavones, afrormosin and formononetin have been isolated from healthy leaves of Onobrychis viciifolia. In addition to these compounds, several other flavonoid (iso-liquiritigenin; liquiritigenin; garbanzol) and isoflavonoid (medicarpin; vestitol) derivatives including the new iso-flavanone, vestitone (7,2'-dihydroxy-4'-methoxyisoflavanone), are present in leaves inoculated with the fungus Helmintho-sporium carbonum. | | |
Reference
| Z. Naturforsch. 33c, 146—148 (1978); received January 9 1978 | | |
Published
| 1978 | | |
Keywords
| Leguminosae, Onobrychis, Isoflavonoids, Flavonoids | | |
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| default:Reihe_C/33/ZNC-1978-33c-0146_n.pdf | | | Identifier
| ZNC-1978-33c-0146_n | | | Volume
| 33 | |
9 | Author
| JohnL. Ingham | Requires cookie* | | Title
| Isoflavonoid Phytoalexins of Yam Bean (Pachyrrhizus erosus)  | | | Abstract
| The furanopterocarpan, neodunol, has been isolated as a major phytoalexin from the fungus-inoculated stems o f Pachyrrhizus erosus. N eodunol is accompanied by small quantities o f dem -ethylmedicarpin and a third compound provisionally identified as the prenylated pterocarpan, ho-moedudiol; traces o f a neodunol isomer were also isolated from P. erosus although its precise struc ture could not be determined. The apparently close chemical relationship between Pachyrrhizus and Neorautanenia is discussed in the light o f a recent study which allocates these genera to differ ent sections o f the legum e tribe Phaseoleae. | | |
Reference
| Z. Naturforsch. 34c, 683 (1979); received June 5 1979 | | |
Published
| 1979 | | |
Keywords
| Leguminosae, Pachyrrhizus, Isoflavonoids, Pterocarpans, Phytoalexins | | |
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| default:Reihe_C/34/ZNC-1979-34c-0683.pdf | | | Identifier
| ZNC-1979-34c-0683 | | | Volume
| 34 | |
11 | Author
| JohnL. Ingham | Requires cookie* | | Title
| Induced Isoflavonoids of Erythrina sandwicensis  | | | Abstract
| Two new phytoalexins isolated from the fungus-inoculated leaflets of Erythrina sandwicensis have been identified as (—)-6aS; 11 aS-3,6 a,9-trihydroxy-10-isopentenylpterocarpan (sandwicar-pin) and (—)-6a/?; 11 a^-3-hydroxy-9-methoxy-10-isopentenylpterocaipan (sandwicensin). These compounds co-occur with several known pterocarpan (demethylmedicarpin, 3,6a,9-trihydroxy-pterocarpan, phaseollidin and cristacarpin) and isoflavan (demethylvestitol and isovestitol) deriva tives. The preparation and spectral (UV, MS) characteristics of 3-methoxy-9-hydroxy-10-isopen-tenylpterocarpan are also described. | | |
Reference
| Z. Naturforsch. 35c, 384—386 (1980); received January 22 1980 | | |
Published
| 1980 | | |
Keywords
| Leguminosae, Erythrina, Pterocarpans, Isoflavans, Phytoalexins | | |
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| default:Reihe_C/35/ZNC-1980-35c-0384.pdf | | | Identifier
| ZNC-1980-35c-0384 | | | Volume
| 35 | |
12 | Author
| JohnL. Ingham, KennethR M Arkham | Requires cookie* | | Title
|  | | | Abstract
| After treatment with the fungus Helminthosporium car-bonum or aqueous copper sulphate, excised Lathyrus sati vus leaflets produce pisatin and a second isoflavonoid phy toalexin (lathycarpin) identified as (+)-6aÄ; 1 la/?-2,3-di-methoxy-6a-hydroxy-8,9-methylenedioxypterocarpan. | | |
Reference
| Z. Naturforsch. 37c, 724 (1982); received March 22 1982 | | |
Published
| 1982 | | |
Keywords
| Leguminosae, Lathyrus, Isoflavonoids, Pterocarpans, Phytoalexins | | |
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| default:Reihe_C/37/ZNC-1982-37c-0724_n.pdf | | | Identifier
| ZNC-1982-37c-0724_n | | | Volume
| 37 | |
13 | Author
| JohnL. Ingham, PaulM. Dewick | Requires cookie* | | Title
| The Structure of Desmocarpin, a Pterocarpan Phytoalexin from Desmodium gangeticum  | | | Abstract
| Ethyl acetate extracts o f diffusates from the fungus-inoculated leaflets o f Desm odium gangeti cum have been found to contain six isoflavonoid phytoalexins including the isoflavones genistein and 2'-hydroxygenistein, and the isoflavanones dalbergioidin, dip hysolone and kievitone. These known phytoalexins occur together with a new antifungal isoflavonoid (desm ocarpin) for which the structure (—)-(6a/?; 1 la/?)-l,9-dihydroxy-3-m ethoxypterocarpan is proposed. | | |
Reference
| Z. Naturforsch. 39c, 531 (1984); received February 27 1984 | | |
Published
| 1984 | | |
Keywords
| Leguminosae, Papilionoideae, Desmodium, Isoflavonoids, Phytoalexins | | |
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| default:Reihe_C/39/ZNC-1984-39c-0531.pdf | | | Identifier
| ZNC-1984-39c-0531 | | | Volume
| 39 | |
14 | Author
| JohnL. Ingham, Satoshi Tahara, StanleyZ. Dziedzic | Requires cookie* | | Title
| Coumestans from the Roots of Puer aria mirifica  | | | Abstract
| Three isoflavonoids obtained from a methanolic extract of Pueraria mirifica roots have been identified as 3,9-dihydroxy-8-methoxy-7-(3,3-dimethylallyl)-coumestan (mirificoumestan), 3,9-di-hydroxy-8-methoxy-7-(3-hydroxy-3-methylbutyl)-coumestan (mirificoumestan hydrate), and 3,9-dihydroxy-8-methoxy-7-(2,3-dihydroxy-3-methylbutyl)-coumestan (mirificoumestan glycol). These new coumestans co-occur with coumestrol (3,9-dihydroxycoumestan), a compound already found in P. mirifica roots. | | |
Reference
| Z. Naturforsch. 43c, 5—10 (1988); received September 7 1987 | | |
Published
| 1988 | | |
Keywords
| Leguminosae, Pueraria, Isoflavonoids, Coumestans, Coumestrol | | |
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| default:Reihe_C/43/ZNC-1988-43c-0005.pdf | | | Identifier
| ZNC-1988-43c-0005 | | | Volume
| 43 | |
16 | Author
| Satoshi Tahara, Seiji Shibaki, JohnL. Ingham, Junya Mizutani | Requires cookie* | | Title
| Further Isoflavonoids from White Lupin Roots  | | | Abstract
| Further investigation o f the isoflavonoids in white lupin roots has revealed a new coum a ronochromone with a 2-hydroxy-3-methyl-3-butenyl side chain (lupinalbin G), three new pyrano-isoflavones (lupinisoflavones K and L, and allolicoisoflavone B) and two new di-hydrofurano-isoflavones each with a 2,3-dihydroxy-3-m ethylbutyl substituent (lupinisofla vones M and N). The biogenetic pathways for these and other lupin isoflavones are briefly discussed. | | |
Reference
| Z. Naturforsch. 45c, 147 (1990); received September 27 1989 | | |
Published
| 1990 | | |
Keywords
| Leguminosae, Lupinus, Isoflavonoids, Isoflavone, Coumaronochromone | | |
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| default:Reihe_C/45/ZNC-1990-45c-0147.pdf | | | Identifier
| ZNC-1990-45c-0147 | | | Volume
| 45 | |
17 | Author
| FedericoG. Ó Mez-Garibay, LaO. Arciniega, CarlosL. Céspedes, Javier Taboadaf, JoséS. Calderón | Requires cookie* | | Title
| Chromene Chalcones from Tephrosia carrollii and the Revised Structure of Oaxacacin^  | | | Abstract
| The aerial parts of Tephrosia carrollii afforded two chromene chalcones. Their structures and stereochemistry were established by spectroscopic methods. The structure of oaxacacin was revised and confirmed by X-ray diffraction. In this paper, we describe the isolation of the chalcone known as "oaxacacin" and the new chalcone named epoxyobovatachalcone. The compound der. oaxacacin was found to be identical with obovatachalcone based on spectroscopic evidence and X-ray diffraction. | | |
Reference
| Z. Naturforsch. 56c, 969—972 (2001); received May 7/June 12 2001 | | |
Published
| 2001 | | |
Keywords
| Tephrosia carrollii, Leguminosae, Chromene Chalcones | | |
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| default:Reihe_C/56/ZNC-2001-56c-0969.pdf | | | Identifier
| ZNC-2001-56c-0969 | | | Volume
| 56 | |
18 | Author
| JohnL. Ingham | Requires cookie* | | Title
|  | | | Abstract
| Peroxide oxidation of cajanol ethyl ether afforded the B ring derived product, 2-methoxy-4-ethoxybenzoic acid. For mation of this compound means that the structure of cajanol, a major phytoalexin from Cajanus cajan, must be revised to 5,4'-dihydroxy-7,2'-dimethoxyisoflavanone. | | |
Reference
| Z. Naturforsch. 34c, 159 (1979); received September 5 1978 | | |
Published
| 1979 | | |
Keywords
| Leguminosae, Cajanus, Phytoalexin, Isoflavanone, Structure Revision | | |
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| | | | TEI-XML for
| default:Reihe_C/34/ZNC-1979-34c-0159_n.pdf | | | Identifier
| ZNC-1979-34c-0159_n | | | Volume
| 34 | |
19 | Author
| JohnL. Ingham | Requires cookie* | | Title
| Isoflavonoid Phytoalexins from Leaflets of Dalbergia sericea  | | | Abstract
| The fungus-inoculated leaflets o f Dalbergia sericea pro duce several isoflavonoid phytoalexins including the known pterocarpans, medicarpin and maackiain, ana the isofla-van, vestitol. A fourth, previously undescribed, phytoalexin has been identified as 7-methoxy-2',4'-dihydroxyisoflavan (neovestitol) by comparison with synthetic material. | | |
Reference
| Z. Naturforsch. 34c, 630 (1979); received April 23 1979 | | |
Published
| 1979 | | |
Keywords
| Leguminosae, Dalbergia, Isoflavans, Pterocarpans, Phyto alexins | | |
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| | | | TEI-XML for
| default:Reihe_C/34/ZNC-1979-34c-0630_n.pdf | | | Identifier
| ZNC-1979-34c-0630_n | | | Volume
| 34 | |
20 | Author
| N. Oel, T. K. Een, L. Ingham | Requires cookie* | | Title
| Phytoalexins from Dolichos biflorus  | | | Abstract
| , 2'-hydroxygenistein, dalbergioidin, kievitone and phaseollidin have been found to accumulate in leaves and stems of Dolichos biflorus (horsegram) following inoculation with the non-pathogens Pseudomonas pisi and Phytophthora megasperma f. sp. glycinea, respectively. They are accompanied by isoferreirin (5,7,4'-trihydroxy-2'-methoxyisoflavanone), a compound not previously reported as a natural product. Coumestrol and psoralidin occur constitutively in Dolichos leaves and stems. | | |
Reference
| Z. Naturforsch. 35c, 923—926 (1980); received June 30 1980 | | |
Published
| 1980 | | |
Keywords
| Leguminosae, Dolichos, Isoflavonoids, Phytoalexins, Structure Elucidation Genistein | | |
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| | | | TEI-XML for
| default:Reihe_C/35/ZNC-1980-35c-0923.pdf | | | Identifier
| ZNC-1980-35c-0923 | | | Volume
| 35 | |
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