Einfache Keten-S.N.acetale

Gompper, von R.; Elser, Wolfgang

doi:10.1016/s0040-4039(00)75145-8

Cited by 7 publications

(9 citation statements)

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“…Triplett-Diradikale wurden schon mit Sauerstoff abgefangen [16]. Schliesslich scheint Benzaldehyd ein gutes Reagens fur 1,4-Zwitterionen zu sein[17]. 27) Aceton-bis(3,5-di-t-butyl-4-hydroxyphenyl)-dithioacetal.…”

unclassified

Über den Mechanismus der Cope‐Umlagerung

Wehrli

Schmid

Belluš

et al. 1977

Helvetica Chimica Acta

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unclassified

Über den Mechanismus der Cope‐Umlagerung

Wehrli

Schmid

Belluš

et al. 1977

Helvetica Chimica Acta

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“…The most common synthesis of the [1, 3,5]triazine ring system has been via cyclotrimerization of nitriles or isocyanates. Dimethyl cyanoiminodithiocarbonate (4) has been used for numerous condensations with amines as well as the synthesis of substituted imidazoles [8], and thiazoles [9]. There are two precedents in the literature where an isothiourea has been condensed with 4 to give methylthio [l,3,5]triazinamines.…”

Section: -A R a C Y T I D I N R I Pseudoisocytidinementioning

confidence: 99%

“…The resultant dry powder was placed on top of a flash column (silica gel, 200-400 mesh, 26 x 5 cm) and eluted with 7111111 ethyl acetatelacetonelmethanollwater to yield 320 mg (29%). Recrystallization (8).…”

Section: -(~-mentioning

confidence: 99%

Synthesis of 2‐(β‐D‐ribofuranosyl)[1,3,5]triazines

Riley

Hennen

Dalley

et al. 1986

Journal of Heterocyclic Chem

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The synthesis of the first [1,3,5]triazine carbon linked nucleosides are reported. 4‐Amino‐6‐(β‐D‐ribofuranosyl)[1,3,5]triazin‐2(1H)‐one (8), an analog of 5‐azacytidine and pseudoisocytidine was prepared. 2,5‐Anhydro‐D‐allonamidine hydrochloride (3) was condensed with dimethyl cyanoiminodithiocarbonate (4) to give 4‐methylthio‐6‐(β‐D‐ribofuranosyl)[1,3,5]triazin‐2‐amine (5). Compound 5 was reacted with m‐chloroperbenzoic acid to give 4‐methylsulfinyl‐6‐(β‐D‐ribofuranosyl)[1,3,5]triazin‐2‐amine (6). Displacement of the methyl sulfinyl with the appropriate nucleophile gave 6‐(β‐D‐ribofuranosyl)[1,3,5]triazine‐2,4‐diamine (7), 4‐amino‐6‐(β‐D‐ribofuranosyl)[1,3,5]triazin‐2(1H)‐one (8), and 4‐amino‐6‐(β‐D‐ribofuranosyl)[1,3,5]triazine‐2(1H)‐thione (9). Dethiation of compound 5 with Raney nickel gave 4‐(β‐D‐ribofuranosyl)[1,3,5]triazin‐2‐amine (10). The crystal structure of 7 was determined by single crystal X‐ray.

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“…720 nm in MeOH 790 nm in PVC 755 nm (3,90) in CH,Cl, Die Verbindungen 35 [82], 36 [83] und 37 [84] sind verzweigt-konjugierte Meropolymethine, welche gleichfalls uber 700 nm absorbieren. Die Verbindung 36 ist ein Beispiel fur ein langwellig absorbierendes Chinodimethid, wahrend die Verbindung 37 ein azaanaloges Monomethin darstellt.…”

unclassified

Polymethinfarbstoffe mit Lichtabsorption im Nahen Infrarot

Fabian¹

1991

J. Prakt. Chem.

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Polymethine Dyes with Light Absorption in the Near Infrared. There is a currently significant interest in days that absorb in the near infrared (NIR) region, These compounds are mainly used as laser days and photoreceptors of photodiode lasers. Many NIR dyes are of polymethinic structure such as polymethine cyanines and polymethine violenes. Knowledge about structure‐color relationships enables dyes of appropriate absorption features to be predicted.

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Einfache Keten-S.N.acetale

Cited by 7 publications

References 0 publications

Über den Mechanismus der Cope‐Umlagerung

Über den Mechanismus der Cope‐Umlagerung

Synthesis of 2‐(β‐D‐ribofuranosyl)[1,3,5]triazines

Polymethinfarbstoffe mit Lichtabsorption im Nahen Infrarot

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