ChemInform Abstract: A Simple Conversion of E-(I) into the Isomeric Z-2-(1-Substituted-1-Alkenyl)-1,3,2-dioxaborinates (VI), Providing a Convenient Stereospecific Synthesis of Both E-(II) and Z-1,2-Disubstituted Vinyl Bromides (VII).

ChemInform ◽  
1988 ◽  
Vol 19 (22) ◽  
Author(s):  
H. C. BROWN ◽  
N. G. BHAT
Keyword(s):  
Stereospecific Synthesis ◽  
Simple Conversion ◽  
Substituted 1

Stereospecific Synthesis oftrans-2,3-Diaryl Substituted 1-Aminocyclopropanecarboxylic Acid Derivatives

2003 ◽  
Vol 33 (16) ◽  
pp. 2873-2884 ◽  
Author(s):  
Guifa Su ◽  
Hongtao Mu ◽  
Danming Za ◽  
Longmei Zeng ◽  
Carlos Cativiela ◽  
...  
Keyword(s):  
Stereospecific Synthesis ◽  
Substituted 1

Branched-chain sugars. Reaction of furanoses with formaldehyde: a stereospecific synthesis of L-dendroketose

1979 ◽  
Vol 57 (4) ◽  
pp. 384-386 ◽  
Author(s):  
Pak-Tsun Ho
Keyword(s):  
Stereospecific Synthesis ◽  
Branched Chain ◽  
Simple Conversion

A simple conversion of 2,3-O-isopropylidene-D-hamamelose, prepared by reaction of 2,3-O-isopropylidene-D-ribose with formaldehyde, into L-dendroketose is described.

Stereospecific Synthesis of trans-2,3-Diaryl Substituted 1-Aminocyclopropanecarboxylic Acid Derivatives.

ChemInform ◽  
2003 ◽  
Vol 34 (49) ◽  
Author(s):  
Guifa Su ◽  
Hongtao Mu ◽  
Danming Za ◽  
Longmei Zeng ◽  
Carlos Cativiela ◽  
...  
Keyword(s):  
Stereospecific Synthesis ◽  
Substituted 1

Synthesis, characterization and biological activities of 1,3,4-oxadiazole derivatives of nalidixic acid and their copper complexes

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Nalidixic Acid ◽  
Copper Complexes ◽  
Biological Activities ◽  
Bidentate Coordination ◽  
Antibacterial And Antifungal Activities ◽  
Elemental Analyses ◽  
Oxadiazole Derivatives ◽  
Antibacterial And Antifungal ◽  
Derivatives Of ◽  
Substituted 1

A series of novel 1, 3, 4-oxadiazole analogues was synthesized from cyclization of hydrazones of substituted 1-ethyl-1,4-dihydro-7-methyl-4-oxo-1,8-naphthyridine-3-carbohydrazides were prepared from nalidixic acid. The structures of synthesized oxadiazole derivatives and their copper complexes were elucidated on the basis of FTIR, elemental analyses, 1H-NMR and atomic absorption spectral analysis. It was observed from spectral data that metal ligand ratio was 1:1 in all copper complexes and they were bidentate, coordination was found to be done through oxygen of 4-oxo group and nitrogen of oxadiazole ring. The synthesized compounds were further evaluated with biological activities and compared with parent hydrazones. Copper complexes possess antibacterial and antifungal activities better than the oxadiazoles while they have better antioxidant activity then copper complexes. Parent hydrazones were better in all biological activities than synthesized oxadiazoles.

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