Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Reactivity of pyrrole pigments, part XVII. Reduction of bile pigments by sodium dithionite (1995)
    Springer
    Monatshefte für Chemie 126 (1995), S. 355-360 
    Details
    ISSN: 1434-4475
    Keywords: Bilirubin ; Biliverdin ; Urobilinogen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Bilandione können auf einfache Art aus den entsprechenden alkylsubstituierten Bilin- order Biladien-ac-dionen durch Reduktion mit Natriumdithionit hergestellt werden. Durch Reduktion von vinylsubstituierten Dipyrrinonen mit Natriumdithionit erhält man die entsprechenden alkylsubstituierten 4,5-Dihydrodipyrrinone.
    Notes: Summary Bilanediones can be easily obtained by sodium dithionite reduction of the corresponding alkyl-substituted bilindiones or biladiene-ac-diones. By reduction of vinyl-substituted dipyrrinones with sodium dithionite, the corresponding alkyl-substituted 4,5-dihydrodipyrrinones can be obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00816105
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    On the preparation of bilirubins of the natural α series substituted with a propionic acid residue and a hydroxypropyl group (1996)
    Springer
    Monatshefte für Chemie 127 (1996), S. 85-89 
    Details
    ISSN: 1434-4475
    Keywords: Acylal ; Bile pigment ; Biliverdin ; Cyclic esters ; Selective reduction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Reduktion von Mesobiliverdin-XIIIα-propan-1,3-diyl-diester mit NaBH4 liefert Mesobilirubin-XIIIα-propan-1,4-diyl-diester. Die analoge Reaktion des Mesobiliverdin-XIIIα-methylen-diesters führt zu 8-(2-Carboxyäthyl)-3,17-diäthyl-12-(3-hydroxypropyl)-2,7,13,17-tetramethylbiladien-ac-1,19-(21H,24H)-dion (MBR-mc).MBR-mc weist in Lösung (UV/Vis und 1H-NMR Spektren) eine ähnliche Struktur auf wie die der natürlichen Bilirubine der α-Serie.
    Notes: Summary The reduction of mesobiliverdin XIIIα propan-1,3-diyl diester with NaBH4 affords mesobilirubin XIIIα propan-1,3-diyl diester. The same reduction of mesobiliverdin XIIIα methylen diester. The same reduction of mesobiliverdin XIIIα methylen diester affords 8-(2-carboxyethyl)-3,17-diethyl-12-(3-hydroxypropyl)-2,7,13,17-tetramethylbiladien-ac-1,19-(21H, 24H)-dione (MBR-mc). The UV/Vis and1H NMR spectra ofMBR-mc show that its structure in solution is similar to that of the natural bilirubins of the α series.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00807412
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...