Reaction of the fischer base with nitro- and bromo-substituted o-hydroxycinnamaldehydes

1984 ◽  
Vol 20 (6) ◽  
pp. 628-631 ◽  
Author(s):  
Yu. M. Chunaev ◽  
N. M. Przhiyalgovskaya ◽  
M. A. Gal'bershtam ◽  
L. N. Kurkovskaya ◽  
M. V. Karpova
Keyword(s):  
Fischer Base

15N, 13C, and 1H NMR Spectra of Azo and Hydrazo Compounds Derived from 1,3,3-Trimethyl-2-methylidene-2,3-dihydroindole (Fischer Base)

1998 ◽  
Vol 63 (7) ◽  
pp. 1012-1020 ◽  
Author(s):  
Antonín Lyčka ◽  
Josef Jirman ◽  
Alois Koloničný
Keyword(s):  
Double Bond ◽  
Hydrochloric Acid ◽  
Nmr Spectra ◽  
Coupling Constants ◽  
Azo Compounds ◽  
Passive Component ◽  
Geometric Isomers ◽  
H Nmr ◽  
Fischer Base ◽  
Hydrazone Form

The 15N, 13C, and 1H NMR spectra were measured for azo and hydrazo compounds derived from 1,3,3-trimethyl-2-methylidene-2,3-dihydroindole (Fischer base), which is a passive component with a terminal methylidene group. Products prepared by coupling in hydrochloric acid exist in the corresponding hydrazone form as the E-isomers. Neutralization gives a mixture of two isomeric azo compounds which differ in the arrangement at the C(2)=C(10) double bond. This mixture was alkylated with methyl iodide to obtain the =N-N(CH3)- hydrazone derivatives. The geometric isomers were resolved based on the NOESY approach and the stereospecific behaviour of the 2J(15N,13C) coupling constants was studied for the 15N-labelled compounds.

ChemInform Abstract: INTERACTION OF FISCHER BASE VINYLOGS WITH SALICYLALDEHYDES

1981 ◽  
Vol 12 (40) ◽  
Author(s):  
YU. M. CHUNAEV ◽  
N. M. PRZHIYALGOVSKAYA ◽  
M. A. GAL'BERSHTAM
Keyword(s):  
Fischer Base

Synthetic Studies on Some Indole Alkaloids via Fischer Base Type Intermediates

Heterocycles ◽  
1980 ◽  
Vol 14 (1) ◽  
pp. 87
Author(s):  
Seiichi Takano ◽  
Kohtaro Yuta ◽  
Susumi Hatakeyama ◽  
Masaaki Sato ◽  
Kozo Shishido ◽  
...  
Keyword(s):  
Indole Alkaloids ◽  
Synthetic Studies ◽  
Fischer Base

ChemInform Abstract: INTERACTION OF A FISCHER BASE WITH 8-HYDROXY-1-NAPHTHALDEHYDES. CARBON-13 NMR STUDY OF REACTION PRODUCTS

1983 ◽  
Vol 14 (17) ◽  
Author(s):  
YU. M. CHUNAEV ◽  
N. M. PRZHIYALGOVSKAYA ◽  
L. N. KURKOVSKAYA ◽  
M. A. GAL'BERSHTAM
Keyword(s):  
Reaction Products ◽  
Nmr Study ◽  
Fischer Base

ChemInform Abstract: REACTION OF FISCHER BASE WITH O-HYDROXYCINNAMIC ALDEHYDE

1982 ◽  
Vol 13 (31) ◽  
Author(s):  
YU. M. CHUNAEV ◽  
N. M. PRZHIYALGOVSKAYA ◽  
M. A. GAL'BERSHTAM ◽  
L. N. KURKOVSKAYA
Keyword(s):  
Fischer Base

ChemInform Abstract: Die Umsetzung der Fischer-Base mit Nitro- und Brom-substituierten o-Hydroxyzimtaldehyden.

1984 ◽  
Vol 15 (47) ◽  
Author(s):  
YU. M. CHUNAEV ◽  
N. M. PRZHIYALGOVSKAYA ◽  
M. V. KARPOVA
Keyword(s):  
Fischer Base

ChemInform Abstract: REACTION OF A FISCHER BASE AND ITS DERIVATIVES WITH BENZOYLACETALDEHYDES

1981 ◽  
Vol 12 (26) ◽  
Author(s):  
A. D. SIDOROV ◽  
M. A. GAL'BERSHTAM ◽  
N. M. PRZHIYALGOVSKAYA
Keyword(s):  
Fischer Base
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