Abstract In the asymmetric synthesis of (S)-Ibuprofen‚ the compound is synthesized in nonracemic form directly from an achiral precursor. First‚ racemic ibuprofen was converted to aN achiral ketene via the acid chloride by adding thionyl chloride followed by triethylamine. Then‚ ketene was reacted with a chiral and nonracemic (S)-ethyl lactate produces a mixture of diasteromeric esters of ibuprofen derivatives where (S) configuration is predominantly. Finally‚ hydrolysis of the ester then provides
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Chemistry of Spices This page intentionally left blank Chemistry of Spices Edited by Villupanoor A. Parthasarathy Indian Institute of Spices Research Calicut‚ Kerala‚ India Bhageerathy Chempakam Indian Institute of Spices Research Calicut‚ Kerala‚ India and T. John Zachariah Indian Institute of Spices Research Calicut‚ Kerala‚ India CABI is a trading name of CAB International CABI Head Office Nosworthy Way Wallingford Oxfordshire OX10 8DE UK Tel: +44 (0)1491 832111 Fax:
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GENERAL ARTICLE CHILE: An Evidence-Based Preschool Intervention for Obesity Prevention in Head Start SALLY M. DAVIS‚ PhDa SARAH G. SANDERS‚ RN‚ MSb COURTNEY A. FITZGERALD‚ MSSW‚ LMSWc PATRICIA C. KEANE‚ MS‚ RD‚ LDd GLENDA F. CANACA‚ MDe RENEE VOLKER-RECTOR‚ BAf ABSTRACT BACKGROUND: Obesity is a major concern among American Indians and Hispanics. The Child Health Initiative for Lifelong Eating and Exercise (CHILE) is an evidence-based intervention to prevent obesity in children enrolled
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M10/4/CHEMI/HP2/ENG/TZ1/XX/M+ MARKSCHEME May 2010 CHEMISTRY Higher Level Paper 2 18 pages –2– M10/4/CHEMI/HP2/ENG/TZ1/XX/M+ This markscheme is confidential and for the exclusive use of examiners in this examination session. It is the property of the International Baccalaureate and must not be reproduced or distributed to any other person without the authorization of IB Cardiff. –5– Subject Details: M10/4/CHEMI/HP2/ENG/TZ1/XX/M+ Chemistry HL Paper 2 Markscheme
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Basic Terms • forensic (adj) 1. pertaining to‚ connected with‚ or used in court of law or public discussion and debate 2. adapted or suited to argumentation; rhetorical Forensic Chemistry • Forensic science (n.) – the application of science to criminal and civil laws. – Emphasizes the application of science to criminal and civil laws that are enforced by police agencies in a criminal justice system. • Adversarial system – owes its origins to individuals such as Bertillon‚ Galton‚ Lattes
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The sugarcane undergoing fermentation produced a volume of carbon dioxide that was nearly nine times more than the corn‚ wheat grain and wheat stalk. Wheat grain and corn was nearly doubled that of the wheat stalk and the control (Figure 1). Sugarcane was the leading plant material producing the highest volume of carbon dioxide (mean= 19.9 ± 0.996 mL) while other than the control; the wheat stalk produced the lowest volume of carbon dioxide (mean= 1.33 ± 0.036 mL). As time elapsed‚ the sugarcane
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CHEMISTRY INVESTIGATION ‘HOW DOES CONCENTRATION AFFECT THE RATE OF REACTION?’ SANIA HUSSAIN CANDIDATE NUMBER:5093 Contents The aim – PG 1 Introduction – PG 1 Theories – PG 1‚ 2 Prediction – PG 2‚ 3 Safety – PG 3 Strategy – PG 3‚ 4 Method – PG 5‚ 6‚ 7 Preliminary – PG 7 Actual experiment and graphs – PG 7+ Chemistry coursework Hypothesis/Aims The aim of the investigation is to see how different concentrations of hydrochloric acid affects the rate at which
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DISCUSSION NO. 3 THE PERIODIC TABLE OF ELEMENTS Members: Salvador‚ Kim Kristal G. Sanchez‚ Jhoana Marie V. Santeco‚ Francesca Anya C. Sy‚ Shane Francheska Lei Dayanne S. Ureta‚ Nheimelyn E. INUR-7 GROUP 10 HISTORY OF THE PERIODIC TABLE The discoveries of elements stole a long period of time. As a matter of fact‚ several elements were mentioned in Biblical accounts and Koran. However‚ it was in the 19th century where they get to discover a lot of element. And as the number of
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Best Evidence Rule It is a legal principle that holds an original writing‚ recording‚ or photograph as superior evidence to prove its content. (a) Is there a writing under FRE 1001? FRE 1001 (a) A “writing” consists of letters‚ words‚ numbers‚ or their equivalent set down in any form. Here‚ as generally applied in federal courts‚ the Best Evidence (BE) rule is limited to the case where the contents need to be proven. The BE rule is applicable to the case because the contents of P’s and Mr. Morton’s
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