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  • 1
    Electronic Resource
    Electronic Resource
    Optical rotatory dispersion studies. 123. Experimental evidence for preference of axial deuterium over axial hydrogen (1978)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 100 (1978), S. 3965-3966 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00480a071
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  • 2
    Electronic Resource
    Electronic Resource
    Untersuchungen zur Steroidhydroxylierung und Systematik von Pilzen der Deuteromycetengattungen bei Curvularia und Helminthosporium (1969)
    Springer
    Archives of microbiology 65 (1969), S. 228-240 
    Details
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung 1. Eine Methode zur selektiven Isolierung von Curvularien und Helminthosporien wird beschrieben. 2. 29 Stämme von Curvularia lunata, 32 Stämme von 24 verschiedenen Curvularia-Arten und 18 Stämme von verschiedenen Helminthosporium-Arten wurden auf ihre Fähigkeit 6α-Fluor-21-acetoxy-16α-methyl-4-pregnen-3,20-dion (FMDOCA) zu verseifen und Reichstein-Substanz-S und FMDOC in 7α,9α11β und 14α Stellung zu hydroxylieren, untersucht. 3. Fast alle untersuchten Stämme können FMDOCA gut verseifen. 4. Zur 11β-Hydroxylierung mit hoher Ausbeute sind nur einige Stämme von Curvularia lunata und zwei Helminthosporium-Stämme befähigt. 5. In der Systematik und Morphologie ließen sich keine Parallelen zu den physiologischen Fähigkeiten dieser Stämme aufzeigen.
    Notes: Summary 1. A method for the selective isolation of Curvularia and Helminthosporium is described. 2. 29 strains of Curvularia lunata, 32 strains of 24 different Curvularia species, and 18 Helminthosporium strains are tested for their ability to saponify 6 α-Fluor-21-acetoxy-16α-methyl-4-pregnene-3,20-dione (FMDOCA) and to hydroxylate the free compound FMDOC and compound Reichstein S in the 7α,9α,11β und 14α position. 3. Almost all strains were able to saponify FMDOCA. 4. Only few strains of Curvularia lunata and two strains of Helminthosporium were able to hydroxylate compound RS or FMDOC in 11β position at interesting quantities. 5. In systematics and morphology no correlations with the physiologic abilities of these strains could be detected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00407106
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  • 3
    Electronic Resource
    Electronic Resource
    Optical rotatory dispersion studies. 136. Enzymic reduction of 2-methyl-2-(trideuteriomethyl)cyclohexane-1,3-dione. Unusual conformation of 2,2-dimethyl-3-hydroxycyclohexanone (1983)
    s.l. : American Chemical Society
    The @journal of organic chemistry 48 (1983), S. 4549-4554 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo00172a021
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  • 4
    Electronic Resource
    Electronic Resource
    12β-Hydroxy-Steroide (1961)
    Springer
    Naturwissenschaften 48 (1961), S. 479-479 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00590379
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  • 5
    Electronic Resource
    Electronic Resource
    Acyloin condensation of acyclic unsaturated aldehydes byMucor species (1991)
    Springer
    Applied microbiology and biotechnology 34 (1991), S. 598-603 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary 2E,6Z-Nonadienal, 2E,4E-nonadienal, citral and geraniol as precursors of geranial from acyloins enzymatically by reaction with activated acetate during fermentation by Mucor circinelloides CBS 39 468. The acyloins were reduced immediately by the fungus to (2S,3R)-diols. Reduction of the aldehyde group, including hydrogenation of the conjugated C-C double bond, hydroxylation of these alcohols and of the formed diols and some cyclizations are found as side reactions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00167906
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  • 6
    Electronic Resource
    Electronic Resource
    Oxidation of carenes to chaminic acids by Mycobacterium smegmatis DSM 43061 (1990)
    Springer
    Applied microbiology and biotechnology 33 (1990), S. 251-254 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary (+)-2-Carene is oxidized to (−)-isochaminic acid by Mycobacterium smegmatis DSM 43061. The side product (+)-2-carene-4-one is formed partially by autoxidation. (+)-3-Carene yields, under the same conditions, (+)-chaminic acid together with (+)-3-carene-5-one and a compound with a cleaved cyclopropane ring, 2-(3′-methylcyclohexa-3′,5′-dienyl)propane-2-ol.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00164516
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  • 7
    Electronic Resource
    Electronic Resource
    Biotransformation of tetramethyl-limonene (1986)
    Springer
    Applied microbiology and biotechnology 24 (1986), S. 31-34 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary Microorganisms which efficiently oxidize limonene 1, do not attack 3,3,5,5-tetramethyllimonene 4. Gibberella cyanea which converts limonene 1 into 8-p-menthene-1,2-diol 2, transforms 4 into 8,9-epoxy-3,3,5,5-tetramethyl-1-menthenol-6 5 as major product. Although epoxidation is not completely stereoselective, the substituents at C-4 and C-6 are always trans to each other.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00266281
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  • 8
    Electronic Resource
    Electronic Resource
    Microbial transformations of terpenoids with 1-p-menthene skeleton (1986)
    Springer
    Applied microbiology and biotechnology 24 (1986), S. 24-30 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary Monoterpenoids with 1-p-menthene-structure can be transformed by Corynespora cassiicola DSM 62 474, DSM 62 475, and Diplodia gossypina ATCC 10 936 to chiral 1,2-trans-diols in yields of more than 60% with only minor amounts of side-products. Whereas the substrates (S)-(-)-limonene, α-terpinene, γ-terpinene, and terpinolene are converted to the (1R,2R)-p-menthene-1,2-diols, (R)-(+)-limonene and (R)-(-)-phellandrene yield the (1S,2S)-1,2-diols. For the transformation of (S)-α-terpineol and (S)-α-terpinene-4-ol to the (1S,2S)-1,2-diols Gibberella cyanea DSM 62 719 can be used, which however oxidizes parallel at the 6- and 7-position.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00266280
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  • 9
    Electronic Resource
    Electronic Resource
    Mikrobiologische Umwandlungen nichtsteroider Strukturen, V. Mikrobiologische Reaktionen von substituierten 1-Äthyl-4-oxo-1,4-dihydrochinolin-3-carbonsäuren (1973)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 106 (1973), S. 2636-2642 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Microbiological Transformations of Nonsteroidal Structures, V. Microbiological Reactions of Substituted 1-Ethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acids1-Ethyl-7-methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (1) is transformed to the methyl ester by Streptomyces surinam. Penicillium adametzi hydroxylates the substrate at the 7-methyl substituent, whereas 1 -ethyl-8-methoxy-5-methyl-4-oxo- 1,4-dihydroquinoline-3-carboxylic acid (4) is hydrolyzed to the free phenol by the same fungi. l-Ethyl-4-oxo-1,4,6,7,8,9-hexahydrobenzo[g]quinolinc-3-carboxylic acid (6) is hydroxylated in 7 - and 8-position by Penicillium adametzi, in 6- and 7- (or 8-) position by Streptomyces achromogenes and in 6-position by Sporotrichum sulfurescens. 5-Ethyl-8-oxo-2,3,5,8-tetrahydrofuro[2,3-g]quinoline-7-carboxylic acid (10) undergoes only a hydrolytic cleavage of the dihydrofuranering.
    Notes: 1-Äthyl-7-methyl-4-oxo-1,4-dihydrochinolin-3-carbonsäure (1) wird durch Streptomyces surinam in den Methylester umgewandelt. Penicillium adametzi hydroxyliert das Substrat am 7-Methylsubstituenten, während bei der 1 -Äthyl-8-methoxy-5-methyl-4-oxo- 1, 4-dihydrochinolin-3-carbonsäure (4) mit dem gleichen Pilz nur eine Phenolätherspaltung eintritt. 1-Äthyl-4-oxo-l,4,6,7,8,9-hexahydrobenzo[g]chinolin-3-carbonsäure (6) wird von Penicillium adametzi in 7- und 8-, von Streptomyces achromogenes in 7-(oder 8-) und 6- sowie von Spororrichum sulfurescens in 6-Stellung hydroxyliert. 5-Äthyl-8-oxo-2,3,5,8-tetrahydrofuro[2,3-g]-chinolin-7-carbonsäure (10) zeigt nur eine hydrolytische Spaltung des Dihydrofuranringes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19731060827
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  • 10
    Electronic Resource
    Electronic Resource
    Mikrobiologische Umwandlungen nichtsteroider Strukturen, VII. Mikrobielle Glucosidierung einer phenolischen Hydroxylgruppe (1976)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 2259-2265 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Microbiological Transformations of Nonsteroidal Structures, VII. Microbiological Glucosidation of a Phenolic Hydroxyl Group5,7-Dichloro-2-methyl-8-quinolinol (1) is transformed to the 4-O-methyl-β-glucoside (2) by Sporotrichum sulfurescens (ATCC 7159). 5-Chloro-2-methyl-7,8-quinolinediol (3) yields the 7- and the 8-(4-O-methyl-β-glucoside) (4,5). 6-Hydroxytetralone forms also the 4-O-methyl-β-glucoside (7). Bis(4-acetoxyphenyl)methylenecyclohexane (8) is transformed after intermediary saponification to the mono-4O-methyl-β-glucoside (10) by Sporotrichum sulfurescens, whereas Rhizopus colinii (ATCC 8996) forms the unsubstituted mono-β-glucoside (11).
    Notes: 5,7-Dichlor-2-methyl-8-chinolinol (1) wird mit Sporotrichum sulfurescens (ATCC 7159) in das 4-O-Methyl-β-glucosid 2 übergeführt. 5-Chlor-2-methyl-7,8-chinolindiol (3) ergibt sowohl das 7-als auch das 8-(4-O-Methyl-β-glucosid) (4,5). 6-Hydroxytetralon (6) bildet ebenfalls ein 4-O-Methyl-β-glucosid (7). Bis(4-acetoxyphenyl)methylencyclohexan (8) wird nach intermediärer enzymatischer Verseifung mit Sporotrichum sulfurescens in ein Mono-4-O-methyl-β-glucosid (10) umgewandelt, während Rhizopus colinii (ATCC 8996) ein unsubstituiertes β-Glucosid (11) bildet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19761090632
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