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Full Screen- TITLE
- DEDICATION
- CERTIFICATE
- DECLARATION
- ACKNOWLEDGEMENT
- CONTENTS
- 1 INTRODUCTION
- 1.1 α-Oxoketene-S, N-acetals
- 1.2 β-Enaminothioketones
- 1.3 β-Oxodithiocarboxylates
- 1.4 Reactions of α-oxoketene-S, N-acetals with Lawessons Reagent
- 1.5 Reaction of α-Oxoketene-S, N-acetal with Vilsmeier-Haack Reagent
- 1.6 Synthesis of β-Oxodithiocarboxylates
- 1.7 Reactions of Functionalized β-Oxodithioesters with Phenacyl Bromide
- 1.8 Reactions of Functionalized β-Oxodithioesters with Bromoacetone
- 1.9 Reaction of Functionalized β-Enaminothioketones with Phenacyl Bromide
- 1.10 Reaction of Functionalized β-Enaminothioketones with Methyl Iodide
- 1.11 Conclusions
- 1.12 References
- 2 α-OXOKETENE-S, N-ACETALS AND β-ENAMINOTHIOKETONES: SYNTHESIS AND REACTIVITY
- 2.1 Introduction
- 2.2 α-Oxoketene-S, N-acetals
- 2.2.1 α-Oxoketene-S, N-acetals: Synthesis
- 2.2.2 α-Oxoketene-S, N-acetals: Reactivity
- 2.3 β-Enaminothioketones
- 2.3.I β-Enaminothioketones: Synthesis
- 2. 3.2 β-Enaminothioketones: Reactivity
- 2.4 References
- 3 REACTIONS OF αOXOKETENE-S, N-ACETALS WITH LA WESSONS REAGENT AND VILSMEIER HAACK REAGENT
- 3.1 Introduction
- 3.2 Reactions of α-Oxoketene-S, N-acetals with Lawessons reagent
- 3.3 Results and Discussion
- 3.4 Reaction of α-oxoketene-S, N-acetal with Vilsmeier Haack Reagent
- 3.6 Conclusions
- 3.7 Experimental
- 3.7.1 Preparation of α-Oxoketene-S, N-acetals: General Procedure
- 3.7.2 Reaction of 3-methylthio-3-anilino-I-aryl propenones with Lawessons reagent: General Procedure
- 3.7.3 Reaction of α-Oxoketene-S, N-acetals with Vilsmeier-Haack reagent: General Procedure
- 3.8 References
- 4 REACTIONS OF FUNCTIONALIZED βOXODITHIOESTERS WITH α-HALOKETONES: SYNTHESIS OF FUNCTIONALIZED THIOPHENES
- 4.1 Introduction
- 4.1.1 β-Oxodithioesters: Synthesis
- 4. 1.2 β-Oxodithioesters: Reactivity
- 4.2. Results and Discussion
- 4.2.1 Reaction of Functionalized β-Oxodithioesters with Phenacyl bromide
- 4.2.2 Reaction of Functionalized β-Oxodithioesters with Bromoacetone
- 4.2.3 Conclusions
- 4.3 Experimental
- 4.3.1 Preparation of β-Oxodithioesters: General Procedure
- 4.3.2 Reactions of Aroyldithioacetates with α-Haloketones: General Procedure
- 4.4 References
- 5 REACTION OF β-ENAMINOTHIOKETONES WITH ALKYLHALIDES AND α-HALOKETONES: SYNTHESIS OF THIOLESTERS AND FUNCTIONALIZED AMINOTHIOPHENES
- 5.1 Introduction
- 5.2 Thiolesters from ketene dithioacetals and dithioesters
- 5.3 General Methods for the Preparation of Functionalized Atninothiophenes
- 5.4 Results and Discussion
- 5.4.1 Reaction of β-Enaminothioketones with Methyl iodide: Formation of 3-Aryl-1, 3-bis (methylthio) prop-2-ene-I-ones
- 5.4.2 Reaction of β-Enaminothioketones with α-Haloketones: Formation of 2-Benzoyl-3-phenylamino-5-phenylthiophene
- 5.5 Conclusions
- 5.6 Experimental
- 5.6.1 General Procedure for the Preparation of 3-aryl-1, 3-bis (methylthio) prop-2-ene-l-ones
- 5.6.2 General procedure for the preparation of 2-Aroyl-3-phenyl amino-5 phenyl thiophenes and 2-aroyl-3 methylamino-5 phenylthiophenes
- 5.7 References