A novel synthesis of isothiocyanates from amines and phenyl isothiocyanate via replacement reaction

2021 ◽  
Author(s):  
Shou-ji Zhu ◽  
Jin-feng Li
Keyword(s):  
Phenyl Isothiocyanate ◽  
Replacement Reaction ◽  
Novel Synthesis

The Uses of Ethyl Cyanobromoacetate in Heterocyclic Synthesis: Novel Synthesis of Thiophene, Pyrazolo[3,4d]thiazole and Thieno[2,3d]pyridazine Derivatives

1992 ◽  
Vol 57 (8) ◽  
pp. 1747-1757 ◽  
Author(s):  
Rafat Milad Mohareb ◽  
Salah El-Kousy ◽  
Abdel Monem El-Torgoman
Keyword(s):  
Phenyl Isothiocyanate ◽  
Heterocyclic Synthesis ◽  
Novel Synthesis ◽  
Pyridazine Derivatives ◽  
Active Methylene ◽  
Dimethylformamide Solution

The reaction of active methylene reagents Ia-Ie with phenyl isothiocyanate in basic N,N-dimethylformamide solution followed by cyclization with ethyl cyanobromoacetate II affords the acyclic thioether derivatives IVa-IVe. The use of IVa-IVe in heterocyclic synthesis was described.

Novel Synthesis of CIF6+ and BrF6+

2000 ◽  
Author(s):  
Thorsten Schroer ◽  
Karl O. Christe
Keyword(s):  
Novel Synthesis

Novel Synthesis of 4-Benzylidene-2-((1-phenyl-3,4-dihydroisoquinoline-2(1H)-yl)methyl) oxazol-5(4H)-one Derivatives Using 1,2,3,Tetrahydroisoquinoline and their Antimicrobial Activity

2020 ◽  
Vol 17 (5) ◽  
pp. 396-403
Author(s):  
Nalla Krishna Rao ◽  
Tentu Nageswara Rao ◽  
Botsa Parvatamma ◽  
Y. Prashanthi ◽  
Ravi Kumar Cheedarala
Keyword(s):  
Antimicrobial Activity ◽  
Antibacterial Activity ◽  
Acetic Acid ◽  
Sodium Acetate ◽  
Good Activity ◽  
Activity Profile ◽  
Aryl Aldehydes ◽  
Chemical Structures ◽  
Novel Synthesis ◽  
Target Molecules

Aims: A series of six 4-benzylidene-2-((1-phenyl-3,4-dihydro isoquinoline-2(1H)-yl)methyloxazol- 5(4H)-one derivatives were synthesized by condensation of substituted aryl aldehydes with 2-(2-(1-phenyl-3,4- dihydro isoquinoline-2(1H)-acetamido)acetic acid in the presence of sodium acetate, acetic anhydride and zinc oxide as catalysts. Background: Novel Synthesis of 4-Benzylidene-2-((1-phenyl-3,4-dihy droisoquinoline-2(1H)-yl)methyl)oxazol- 5(4H)-one derivatives using 1,2,3,Tetrahydroisoquinoline and their antimicrobial activity. Objective: The title compounds can be synthesized from 1,2,3,4-tetrahydroisoquinoline. Methods: The target molecules, i.e., 4-benzylidene-2-((1-phenyl-3, 4-dihydro isoquinoline-2(1H)-yl) methyl) oxazol-5(4H)-one derivatives (8a-8f) have been synthesized from 1,2,3,4-tetrahydroisoquinoline which was prepared from benzoic acid in few steps. Results: All the six compounds were evaluated based on advanced spectral data (1H NMR, 13C NMR & LCMS), and the chemical structures of all compounds were determined by elemental analysis. Conclusion: Antibacterial activity of the derivatives was examined for the synthesized compounds and results indicate that compound with bromine substitution has a good activity profile.

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