TRYPTAMINES, CARBOLINES, AND RELATED COMPOUNDS: PART VIII. δ-CARBOLINE

1960 ◽  
Vol 38 (11) ◽  
pp. 2152-2160 ◽  
Author(s):  
R. A. Abramovitch ◽  
K. A. H. Adams ◽  
A. D. Notation
Keyword(s):  
Spectral Properties ◽  
Dry Distillation ◽  
Derivatives Of ◽  
Related Compounds

The first unambiguous synthesis of δ-carboline has been achieved starting with 3-amino-2-phenylpyridine. This was converted to the azide which was thermally cyclized to δ-carboline. The carboline gave a py-N-methiodide which was converted to the anhydronium base. The pKa of the anhydronium base was determined and its significance is discussed. The anhydronium base formed a methiodide which, on dry distillation, gave ind-N-methyl-δ-carboline. The spectral properties of the various derivatives of δ-carboline were examined and the bond structures of the anhydronium base and the methiodides are discussed.

Poly(methyl-phenylsilylene) Derivatives as Photoconductors

1993 ◽  
Vol 58 (10) ◽  
pp. 2337-2348 ◽  
Author(s):  
Ivan Kmínek ◽  
Stanislav Nešpůrek ◽  
Eduard Brynda ◽  
Jiří Pfleger ◽  
Věra Cimrová ◽  
...  
Keyword(s):  
Spectral Properties ◽  
Long Wavelength ◽  
Langmuir Blodgett ◽  
Ultrathin Layers ◽  
Polar Derivatives ◽  
Derivatives Of

The attachment of long wavelength absorbing π-conjugated chromophores to poly(methyl-phenylsilylene) (PMPSi) via reactions of its formylated derivative is described. Some of the obtained polymers exhibit improved photostability in comparison with the parent polymer. Their spectral properties and photoconductivity are discussed. Ultrathin layers and multilayers were prepared from polar derivatives of PMPSi by the Langmuir-Blodgett technique and their photoconductive behaviour was studied.

Synthesis of 5,7-dihydroxynaphthoquinone derivatives and their reactions with nucleophiles: Nitration of 2,3-dimethylnaphthalene and subsequent transformations

1976 ◽  
Vol 29 (10) ◽  
pp. 2247 ◽  
Author(s):  
HJ Banks ◽  
DW Cameron ◽  
MJ Crossley ◽  
EL Samuel
Keyword(s):  
Unusual Reaction ◽  
Nitro Derivatives ◽  
Reactions With Nucleophiles ◽  
Derivatives Of ◽  
Related Compounds ◽  
Benzenoid Ring

5,7-Dihydroxy-2,3-dimethyl-l,4-naphthoquinone (5) and related compounds have been synthesized. The quinone affords an accessible substrate for studying an unusual reaction with nucleophiles, which involves attack at the 8-position, i.e. at the benzenoid ring. An unsuccessful approach to (5) has led to tri- and tetra-nitro derivatives of 2,3-dimethylnaphthalene. Reduction of the former and subsequent conversions have given aminonaphthoquinone and perimidinone derivatives.

A synthesis of alkylated 3-aminoisoquinolines and related compounds

1982 ◽  
Vol 35 (7) ◽  
pp. 1391 ◽  
Author(s):  
AJ Liepa
Keyword(s):  
Phosphoryl Chloride ◽  
Tertiary Amides ◽  
Derivatives Of ◽  
Related Compounds ◽  
Selection Of

N,N-Dialkyl derivatives of 3-aminoisoquinoline have been prepared by reaction of nitriles with various arylacetic acid tertiary amides in the presence of phosphoryl chloride. The synthesis has been extended to include a benzoisoquinoline and annulated isoquinolines by the selection of appropriate amide and nitrile precursors.

Synthesis of Red Luminescent Non Symmetric Styryl-4H-Pyran-4-Ylidene Fragment Containing Derivatives for Organic Light-Emitting Diodes

2011 ◽  
Vol 222 ◽  
pp. 271-274 ◽  
Author(s):  
Elmars Zarins ◽  
Janis Jubels ◽  
Valdis Kokars
Keyword(s):  
Organic Solvents ◽  
Spectral Properties ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Amorphous Films ◽  
Light Emitting ◽  
Organic Light ◽  
Volatile Organic ◽  
Derivatives Of

New organic glassy non symmetric styryl- derivatives of 2(2,6-substituted-4H-pyran-4-ylidene)-malononitrile, 2(2,6-substituted-4H-pyran-4-ylidene)-1H-indene-1,3(2H)-dione and 2(2,6-substituted-4H-pyran-4-ylidene)-pyrimidine-2,4,6(1H,3H,5H)-trione were synthesized. They form thin solid amorphous films from volatile organic solvents (DCM and chloroform). Their spectral properties have been studied.

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