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Title: New synthetic strategies for five membered heterocycles via novel organosulfur synthons
Authors: Ila, H.
Acharya, Anand
Keywords: Heterocyclic compounds synthesis
Organosulfur synthons
Issue Date: 29-Jan-2018
Publisher: Jawaharlal Nehru Centre for Advanced Scientific Research
Citation: Acharya, Anand. 2018, New synthetic strategies for five membered heterocycles via novel organosulfur synthons, Ph.D thesis, Jawaharlal Nehru Centre for Advanced Scientific Research, Bengaluru
Abstract: For several years, our research group has been involved in design and development of novel organosulfur building blocks and their synthetic applications for construction of substituted and fused five/six membered heterocycles. In this chapter, a brief account of these intermediates has been given. 1.1 Polarized Ketene Dithioacetals The versatile synthon family of polarized ketene dithioacetals of the general structure A has been proven to be among the simplest and useful synthetic building blocks in various organic transformations.1 Among them, the corresponding α-oxoketene dithioacetals have been extensively studied by our research group.1a-b These organosulfur synthons can easily be prepared by the reaction of CS2 with various active methylene ketones in the presence of base followed by alkylation in one-pot reaction (Scheme 1).
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