Synthesen in der Carotinoid‐Reihe 20. Mitteilung Neue Synthesen von Apocarotinoiden

Schwieter, Ulrich; Gutmann, Heike; Lindlar, H.; Marbet, R.; Rigassi, N.; Rüegg, R.; Schaeren, S. F.; Isler, O.

doi:10.1002/hlca.660490143

Cited by 42 publications

(13 citation statements)

References 19 publications

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“…This is demonstrated by the 12 eV spectrum, which shows more clearly the molecular ion of the carotenoid. Further peaks of diagnostic value are caused by loss of acetic acid (m/e 548; M-60) from the fl-ring, and by elimination of toluene (m/e 516; M-92), and xylene (m/e 502; M-106) from the polyene chain (Schwieter et al, 1965). Also, multiple fragmentations were observed: m/e 456 (M-60-92) and m/e 442 (M-60-106).…”

Section: Resultsmentioning

confidence: 99%

Isolation of 3-hydroxy-β,ε-caroten-3′-one from two moth species,Actias selene andCerura vinula

Kayser

1975

J Comp Physiol B

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Summary. 3-Hydroxy-fl,e-caroten-3'-one (3'-dehydrolutein) was isolated from the moths Actias selene and Cerura vinula. The structure is based on chemical, chromatographical, electron, and mass spectroscopic data. The carotenoid is identical to a semi-synthetic sample obtained from lutein by Oppenauer oxidation. It seems to be widespread among Saturuiid and other moths, and is probably derived from dietary lutein.

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Section: Resultsmentioning

confidence: 99%

Isolation of 3-hydroxy-β,ε-caroten-3′-one from two moth species,Actias selene andCerura vinula

Kayser

1975

J Comp Physiol B

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“…Zum Bestimmen der Astaxanthin-und Lycopinkonzentration wurden die Carotinoide mit n-Hexan extrahiert. Dann wurde der Gesamtcarotinoidgehalt spektrophotometrisch (U2000, Hitachi Europe GmbH, Düsseldorf) bestimmt [10,11] der Ölphase während der Versuche weitgehend konstant gehalten werden (s. Abb. 3A).…”

Section: Problemstellungunclassified

Hochkonzentrierte carotinoidhaltige Emulsionen

Ribeiro¹,

Cruz²

2004

Chemie Ingenieur Technik

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“…'H-NMR (80 MHz, CDCI,): 0,07 (s, (CH3),Si); 0,89 (s, (CH,),CSi); 0,98, 1,03 (2s, 2 CH,-C(I)); 1,73 (s, CH,-C(5)); 1,86 (.Y, CH,-C(13')); 1,96, 2,02 (2s, CH,-C(Y), CH3-C(13)); 1,0-2,0 (2 H-C(2), 2 -curo~in (11). Zur Lsg.…”

Section: (R)-4-( T-butylmentioning

confidence: 99%

Synthesen von optisch aktiven Carotinoiden mit einer (R)‐4‐Hydroxy‐β‐Endgruppe

Haag

Eugster

1985

Helvetica Chimica Acta

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Synthesis of Optically Active Carotenoids with (R)‐4‐Hydroxy β‐End Groups We describe the synthesis of optically active iso‐β‐kryptoxanthin (12; (R)‐β,β‐caroten‐4‐ol), iso‐α‐kryptoxanthins 14 ((4R,6′RS)‐β,ε‐caroten‐4‐ol) and 16 ((4R,6′R)‐β,ε‐caroten‐4‐ol), 4′‐hydroxyechinenone (18; (R)‐4′‐hydroxy‐β,β‐caroten‐4‐one), and isorubixanthin (20; (R)‐β,ω,‐caroten‐4‐ol), their 400‐MHz‐1H‐NMR spectra, CD spectra and HPLC behaviour.

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Synthesen in der Carotinoid‐Reihe 20. Mitteilung Neue Synthesen von Apocarotinoiden

Cited by 42 publications

References 19 publications

Isolation of 3-hydroxy-β,ε-caroten-3′-one from two moth species,Actias selene andCerura vinula

Isolation of 3-hydroxy-β,ε-caroten-3′-one from two moth species,Actias selene andCerura vinula

Hochkonzentrierte carotinoidhaltige Emulsionen

Synthesen von optisch aktiven Carotinoiden mit einer (R)‐4‐Hydroxy‐β‐Endgruppe

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