Results 71 to 80 of about 1,392 (198)

Isothiazoles. Part 14: New 3-aminosubstituted isothiazole dioxides and their mono- and dihalogeno derivatives

open access: yes, 2003
3-Alkylamino- and 3-arylamino isothiazole dioxides unsubstituted at C-4 and C-5 were synthesized starting from dithiopropionic amides. Taking advantage of the direct chlorination during the cyclization process or realizing an addition-elimination process
M.L. Gelmi   +3 more
core   +1 more source

Fused isothiazole S-oxide systems from cycloaddition reactions of N-benzylisothiazol-3-amine 1-oxide

open access: yes, 2009
The racemic N-benzylisothiazol-3-amine 1-oxide (2) was demonstrated to be an efficient partner in Diels-Alder reactions (Schemes 2-4) and a good dipolarophile in 1,3-dipolar cycloaddition reactions with nitrile oxides (Scheme 5). Polycyclic isothiazole S-
M.L. Gelmi   +4 more
core   +1 more source

Isothiazoles. Part VIII. Thermal rearrangement to α,β-unsaturated nitriles of cycloadducts from 3-diethylamino-4-(4-methoxyphenyl)-5-vinyl- isothiazole 1,1-dioxide with nitrile oxides and munchnones

open access: yes, 1998
3-Diethylamino-4-(4-methoxyphenyl)-5-vinyl-isothiazole 1,1-dioxide was reacted with nitrile oxides and munchnones affording the cycloadducts in good yields. The cycloaddition reaction occurred at the vinyl group exclusively.
M.L. Gelmi   +3 more
core   +1 more source

Isothiazoles. Part IV. Cycloaddition reactions of diaryl-oxazolones and munchnones to 3-diethylamino-4-(4-methoxyphenyl)-isothiazole 1,1-dioxide: A new synthesis of triarylpyrroles

open access: yes, 1995
3-Diethylamino-4-(4-methoxyphenyl)-isothiazole 1,1-dioxide (3) readily reacts with oxazolones 2 and munchnones 7 affording with satisfactory yield 3-diethylamino-4,6-diaryl-3a,4-dihydro-3a-(4-methoxyphenyl)-6aH-pyrrol o[3,4-d]isothiazole 1,1-dioxides 4 ...
M.L. Gelmi   +3 more
core   +1 more source

Rates of N-methylation of N-methylpyrazole, isothiazole and isoxazole and their 2,1- and 1,2-benzologues

open access: yes, 1974
The rates of quaternization of N-methylpyrazole, isothiazole and isoxazole and of their 2,l- and 1,2-benzologues with methyl iodide in dimethyl sulphoxide and with dimethyl sulphate are reported.
LW Deady, E Homfeld, M Davis
core   +1 more source

Anti-HIV evaluation of benzo[d]isothiazole hydrazones

open access: yes, 2009
The synthesis and the anti-HIV-1 activity of novel benzo[d]isothiazole hydrazones are reported. Target compounds tested in MT-4 cells cultures for their anti-HIV properties against wild type HIV-1 and HIV strains carrying clinically relevant mutations ...
VICINI, Paola   +7 more
core   +1 more source

Minoo industrial wastewater treatment plant: Introduction, process review, chemical monitoring, physicochemical monitoring and microbial characteristics monitoring

open access: yesDesalination and Water Treatment
In this research, the quality of each stage and the final effluent of Mino's industrial waste water treatment plant is comprehensively investigated. In this regard, the water quality of the waste water treatment plant is examined from the point of view ...
Sara Nazari   +2 more
doaj   +1 more source

Thienoisothiazoles. III. The Synthesis and Reactions of 3-Phenyl-5-alkylthioisothiazole-4-carbonitriles and 3-Phenylthieno[3,2-d]isothiazoles

open access: yes, 1989
Oxidation of the alkyl 3-amino-4-cyano-3-phenylpropenedithioates (1), obtained by alkylation of the condensation product of 3-amino-3-phenylpropenenitrile and carbon disulfide, produced 3-phenyl-5-alkylthioisothiazole-4-carbonitriles (2a-d). The ease of
HD Krebs
core   +1 more source

Design, synthesis and fungicidal activity of isothiazole-thiazole derivatives

open access: yes, 2018
3,4-Dichloroisothiazoles can induce systemic acquired resistance (SAR) to enhance plant resistance against a subsequent pathogen attack, and oxathiapiprolin exhibits excellent anti-fungal activity against oomycetes targeting at the oxysterol-binding ...
Glukhareva, Tatiana   +19 more
core   +1 more source

Synthesis of Isothiazole via the Rhodium-Catalyzed Transannulation of 1,2,3-Thiadiazoles with Nitriles

open access: yes, 2016
A synthetic method for obtaining a wide variety of isothiazoles by the Rh-catalyzed transannulation of 1,2,3-thiadiazoles with alkyl, aryl, and heteroaryl nitriles, which proceeds via an α-thiavinyl Rh-carbenoid intermediate, was developed.
Boram Seo (1652119)   +2 more
core   +1 more source

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