'Diazonium salt' presentation slideshows

22.15 Nitrosation of Alkylamines

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22.16 Nitrosation of Alkylamines

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22.15 Nitrosation of Alkylamines

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Nitrite Ion, Nitrous Acid, and Nitrosyl Cation

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UNIT 4

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Diazoniun Salts

Diazoniun Salts. Physical Properties. colourless crystalline solid. soluble in water and is stable in cold but reacts with water when warmed. It decomposes easily in the dry state. . Chemical Reactions. Reactions involving displacement of nitrogen. Replacement by halide or cyanide ion.

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Diazonium Salts

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Diazonium Salts

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Azo Compounds

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Azo Compounds

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Azo Compounds

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4.1 ?????????1 o Aliphatic amine ??? HNO 2

OH. CH 3 CHCH 3. 4.????????? Amine ??? nitrous acid(HNO 2 ). 4.1 ?????????1 o Aliphatic amine ??? HNO 2. Na NO 2 + H Cl. HNO 2. CH 3 CH 2 CH 2 - N H 2. Alcohol + Alkene +N 2. 0-5 0 C. ??????????????? (Substitution). CH 3 CH 2 CH 2 OH + N 2. ????????????????????

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Diazonium Salts to Functionalize Benzene

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4.1 ?????????1 o Aliphatic amine ??? HNO 2

OH. CH 3 CHCH 3. 4.????????? Amine ??? nitrous acid(HNO 2 ). 4.1 ?????????1 o Aliphatic amine ??? HNO 2. Na NO 2 + H Cl. HNO 2. CH 3 CH 2 CH 2 - N H 2. Alcohol + Alkene +N 2. 0-5 0 C. ??????????????? (Substitution). CH 3 CH 2 CH 2 OH + N 2. ????????????????????

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Anticancer and antimicrobial activities of some synthesized pyrazole and triazole derivatives

5-[1-(Aryl)-5-phenyl-1H-pyrazol-3-yl]-4-phenyl-2,4-dihydro[1,2,4]triazole-3-thione derivatives 1a-c were reacted with chloropropanol, chloroacetone, chlorodiethyl ether and epichlorohydrine to afford the corresponding acyclonucleosides 2a-c-5a-c, respectively. Also, compound 1c was reacted with formaldehyde and 4-chloroaniline or piperidine to give the corresponding Mannish products 6 and 7, respectively. In addition, 1c was reacted with acrylonitrile or benzoyl chloride to give N-triazole derivatives 8 and 9, respectively. The structures of newly synthesized compounds were confirmed by IR, 1H NMR, MS spectral data and elemental analysis. All the compounds were screened for their antibacterial and antifungal activities and they showed high activity compared with Ciprofloxacin and Fusidic acid as positive controls. The compounds 2b, 3b, 5b, 6 and 7 were screened for their anticancer activities against breast carcinoma (MCF7) and cervix carcinoma (HELA) human cell lines compared with Doxorubicin positive control. The detailed synthesis, spectroscopic data, antimicrobial and anticancer activities of some synthesized compounds were reported.

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Azo Compounds

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Chapter 44 The Sandmeyer Reaction

Chapter 44 The Sandmeyer Reaction. Purpose.

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Chapter 46 Dyes and Dyeing Diazotization of Sulfanilic Acid & Preparation of Methyl Orange

Chapter 46 Dyes and Dyeing Diazotization of Sulfanilic Acid & Preparation of Methyl Orange. Purpose. In this experiment a separately prepared diazonium salt is coupled with N,N -dimethylaniline in a weakly acidic solution to give Methyl Orange.

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Amines

Amines are derivatives of ammonia, NH 3 . Amines can be classified as primary, secondary or tertiary. Amines. Secondary. Primary amines have one carbon attached to the nitrogen atom of the amine group.

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