Title : Total Synthesis of naturally occurring lactones and Semiplenamides C and E and Investigation on Novel Diterpenoids of Jatropha Multifida

Type of Material: Thesis
Title: Total Synthesis of naturally occurring lactones and Semiplenamides C and E and Investigation on Novel Diterpenoids of Jatropha Multifida
Researcher: Shashikanth B.
Guide: Das, Biswanath
Department: Faculty of Chemistry
Publisher: Jawaharlal Nehru Technological University, Hyderabad
Place: Hyderabad
Year: 2013
Language: English
Subject: Jatropha
lactones
Multifida
Semiplenamides
Synthesis
Dissertation/Thesis Note: PhD; Faculty of Chemistry, Jawaharlal Nehru Technological University, Hyderabad, Hyderabad; 2013
Fulltext: Shodhganga

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035__|a(IN-AhILN)th_453893
040__|aJNTU_500028|dIN-AhILN
041__|aeng
100__|aShashikanth B.|eResearcher
110__|aFaculty of Chemistry|bJawaharlal Nehru Technological University, Hyderabad|dHyderabad|ein|0U-0017
245__|aTotal Synthesis of naturally occurring lactones and Semiplenamides C and E and Investigation on Novel Diterpenoids of Jatropha Multifida
260__|aHyderabad|bJawaharlal Nehru Technological University, Hyderabad|c2013
300__|c-|dNone|a194 p.
500__|aReferences included in the chapters
502__|bPhD|cFaculty of Chemistry, Jawaharlal Nehru Technological University, Hyderabad, Hyderabad|d2013
520__|aThe present study is focussed on the stereoselective total synthesis of some naturally occurring lactones, semiplenamides and isolation of bioactive natural products. newline6-Substituted-5,6-dihydro-2H-pyran-2-one is an important structural subunit in many biologically promising natural products. newline(6 S)-5,6-Dihydro-6-[(2 R)-2-hydroxy-6-phenylhexyl]-2H-pyran-2-one and dodoneine are amongst them that attracted our focus for newlinesynthesis due to their interesting biological activities and structural similarities. The pyranone unit of both molecules was brought newlinethrough a common intermediate with varying asymmetric centres. These lactone intermediates, ( S) - and ( R)-2-(6-oxo-3, 6-dihydro-2H-pyran-2-yl) acetaldehydes have further been accomplished from 1,3-newlinepropanediol employing Maruoka asymmetric allylation and ring closing metathesis reaction. These intermediates were converted into desired natural products (6 S)-5,6-Dihydro-6-[(2 R)-2-hydroxy-6-phenylhexyl]-2H-pyran-2-one and dodoneine
653__|aJatropha
653__|alactones
653__|aMultifida
653__|aSemiplenamides
653__|aSynthesis
700__|aDas, Biswanath|eGuide
856__|uhttp://shodhganga.inflibnet.ac.in/handle/10603/19245|yShodhganga
905__|afromsg

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