Heterocycles are ubiquitously present in nature and occupy a unique place in organic chemistry as they are part of the DNA and haemoglobin that make life possible. The Chemistry of Heterocycles covers an introduction to the topic, followed by a chapter on the nomenclature of all classes of isolated, fused and polycyclic heterocycles. The third chapter delineates the highly strained three membered N,O and S containing aromatic and non-aromatic heterocycles with one and more than one similar and dissimilar heteroatom. The four-membered heterocycles are abundantly present in various natural and synthetic products of pharmacological importance. This chapter describes the natural abundance, synthesis, chemical reactivity, structural features and their medicinal importance. This class of compounds are present as sub-structures in penicillin and cytotoxic Taxol. Lastly, a chapter on the natural abundance, synthesis, chemical reactivity and pharmacological importance of 5-membered heterocycles with N,O,S heteroatom is covered. The chemistry of heterocycles with mixed heteroatom such as, N-S, N-O, N-S etc. is also described. - Gives in-depth, clear information about various systems of nomenclature along with widely acceptable IUPAC system for naming various classes of heterocycles - Provides complete information about natural occurrences, synthesis, chemical reactivity, pharmacological importance of heterocycles and their application in material science - Highly relevant for graduate students and researchers, providing updated information about various isolated and fused N,O and,S containing heterocycles
This book is about the great contribution, made by the so-called low castes, presently called Dalits, to the Hindu Religion, spiritual, social and political fields, in everyperiod of Indian history. In the chapter Aryan Gods Versus Castes , the author has brought out in detail as to how Lord Rama, Krishna and Shiva laid the ideals of liberal society free from rigidity of castes and other man-made distinctions. The author traces the present rigid structure of Hindu Caste to the period of Manusmriti and other Smrities after 2nd century AD, though the period of mass untouchability is given as 18th and 19th century AD, which resulted out of several famines and consequent extreme poverty. The treatment of the book is on modern scientific lines dipped in spirituality, as preached by Swami Vivekananda. While highlighting the plight of Dalits in the past and present period, the author has not lost sight of whatever is good and grand in Hindu philosophy.
The Annual provides a chronicle of events in country's political affairs on a day-to-day basic and covers all the 6 national and 33 regional parties recognised by the election commission of India. Useful for party members political activists, media houses, libraries, political analysts, academicians and scholars.
This book is a critical analysis of India, Indology and related issues from a historical point of view with a clear and bold indication towards the current problems and issues.
Challenging the Westphalian view of international relations, which focuses on the sovereignty of states and the inevitable potential for conflict, the authors from the Borderlands Study Group reconceive borders as capillaries enabling the flow of material, cultural, and social benefits through local communities, nation-states, and entire regions. By emphasizing local agency and regional interdependencies, this metaphor reconfigures current narratives about the China India border and opens a new perspective on the long history of the Silk Roads, the modern BCIM Initiative, and dam construction along the Nu River in China and the Teesta River in India. Together, the authors show that positive interaction among people on both sides of a border generates larger, cross-border communities, which can pressure for cooperation and development. India China offers the hope that people divided by arbitrary geo-political boundaries can circumvent race, gender, class, religion, and other social barriers, to form more inclusive institutions and forms of governance.
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