A synthesis of acronycine

1970 ◽  
Vol 23 (9) ◽  
pp. 1881 ◽  
Author(s):  
J Hlubucek ◽  
E Ritchie ◽  
WC Taylor
Keyword(s):  
Thermal Rearrangement ◽  
Methyl Derivatives ◽  
Derivatives Of

Improved syntheses of certain O-and N-methyl derivatives of 1,3-dihydroxy-acridone are described. Thermal rearrangement of the appropriate 3-α,α-dimethyl-propargyl ethers in the series yields products which may be methylated to acronycine.

Pyrimidine reactions. XVI. Thermal rearrangement of substituted 2- and 4-alkoxypyrimidines

1968 ◽  
Vol 21 (1) ◽  
pp. 243 ◽  
Author(s):  
DJ Brown ◽  
T Lee
Keyword(s):  
Electronic Effect ◽  
Thermal Rearrangement ◽  
Ultraviolet Spectra ◽  
Pka Value ◽  
Nitro Derivatives ◽  
Methyl Derivatives ◽  
Spectral Comparison ◽  
Derivatives Of ◽  
Methyl Bromo

Thermal rearrangement of methyl, bromo, and nitro derivatives of 2- and 4-alkoxy-pyrimidines produced their N-alkyl isomers. These were identified by p.m.r. spectral comparison with synthetic specimens of unambiguous or proven structure. The rates for such isomerizations were measured conveniently by changes in ultraviolet spectra. The C-methyl derivatives rearranged more slowly than the parent alkoxypyrimidines, but the bromo, and especially the nitro, derivatives did so much more quickly. Among the derivatives of each methoxy-pyrimidine, the rate of rearrangement increased as the basic pKa value fell and as the methoxyl protons moved downfield, thus affording a qualitative correlation with properties reflecting the electronic effect of each substituent.

Physical Properties of TCNQ Salts with N-Methyl Derivatives of Pyridine

1982 ◽  
Vol 85 (1) ◽  
pp. 257-263 ◽  
Author(s):  
A. Graja ◽  
M. Przybylski ◽  
B. Butka ◽  
R. Swietlik
Keyword(s):  
Physical Properties ◽  
Methyl Derivatives ◽  
Derivatives Of

Methyl derivatives of furan

1974 ◽  
Vol 39 (11) ◽  
pp. 3109-3116 ◽  
Author(s):  
J. Šrogl ◽  
M. Janda ◽  
I. Stibor ◽  
V. Skála ◽  
P. Trška ◽  
...  
Keyword(s):  
Methyl Derivatives ◽  
Derivatives Of

O'-Methyl derivatives of arabinosylcytosine

1972 ◽  
Vol 46 (4) ◽  
pp. 1734-1741 ◽  
Author(s):  
E. Darżynkiewicz ◽  
J.T. Kuśmierek ◽  
D. Shugar
Keyword(s):  
Methyl Derivatives ◽  
Derivatives Of

ESR SPECTRA AND STRUCTURE OF RADICAL ANIONS OF METHYL DERIVATIVES OF STANNANE

1980 ◽  
Vol 9 (6) ◽  
pp. 611-612 ◽  
Author(s):  
Akinori Hasegawa ◽  
Takatoshi Yamaguchi ◽  
Michiro Hayashi
Keyword(s):  
Esr Spectra ◽  
Radical Anions ◽  
Methyl Derivatives ◽  
Derivatives Of
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