...Chem‐106 Grignard Synthesis of Triphenylmethanol Objective: The purpose of this experiment is to synthesize triphenylmethanol from benzophenone via Grignard reaction. The product will be isolated through extractions and purified by recrystallization. Reaction efficiency will be evaluated through percent yield, percent recovery, and the purity of the final product will be determined by IR, TLC, and mp determination. Chemicals: bromobenzene, magnesium turnings, diethyl ether, benzophenone, biphenyl, triphenylmethanol, iodine, 6 M HCl, brine, anhydrous MgSO4 or Na2SO4, 10:90 EtOAc/hexanes. Glassware and equipment: 100 mL RBF, air condenser, Claisen adaptor, 60 and 125 mL addition funnel, short stem glass funnel, two 50 mL Erlenmeyer flasks, 10 mL graduated cylinder, lab jack, crystallizing dish, magnetic stir bar. Techniques: reflux, extraction, vacuum filtration, recrystallization, TLC, mp, IR spectroscopy. Introduction In 1912 Victor Grignard received the Nobel prize in chemistry for his work on the reaction that bears his name, a carbon-carbon bond-forming reaction by which almost any alcohol may be formed from appropriate alkyl halides and carbonyl compounds. The Grignard reagent RMgBr is easily formed by redox reaction of an alkyl halide with magnesium metal in anhydrous diethyl ether solvent. R-Br + Mg → RMgBr The Grignard reagent can be viewed as an ionic species consisting of carbanion R-, with Mg2+ counterion and an additional Br- counterion. The carbanion...
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...Introduction to the industry Metals have accompanied mankind since ancient ages, and steel, if we begin to follow it from the moment of its historically famed damascene form - for some millennia. From the era of craftsman-like small-scale production to today's form of industrial mass production, steel has covered an intricate path lined with significant innovations in production processes, development of range and quality of products, and perpetually growing productivity of labour, improving economies and ecological load. In addition, a radical change in relationship to the customers is occuring at the end of this century, namely by a pronounced shift of readiness towards the needs and requirements of these customers. Steel's indisputable significance is confirmed by the fact that it has become the second most mass-produced commodity after cement production, attaining the world-wide production volume of approx. 750 mil tons yearly. The art of iron production from ore arose in connection with the practices of copper and lead technologies in Anatolya, in northern Syria and possibly also in part of Iran. Iron ores were added as fluxes for treatment of sulphide copper ores. Iron drops, which the local manufacturers identified already 3000 years BC, comparing these with meteoritic iron, already hinted at the existence of the possibility of producing iron, but this only occurred practically 15 centuries later. Since that time, it is necessary to reckon that only small amounts of this...
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...Physical Chemistry Understanding our Chemical World Physical Chemistry Understanding our Chemical World Paul Monk Manchester Metropolitan University, UK Copyright 2004 John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England Telephone (+44) 1243 779777 Email (for orders and customer service enquiries): cs-books@wiley.co.uk Visit our Home Page on www.wileyeurope.com or www.wiley.com All Rights Reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except under the terms of the Copyright, Designs and Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London W1T 4LP, UK, without the permission in writing of the Publisher. Requests to the Publisher should be addressed to the Permissions Department, John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England, or emailed to permreq@wiley.co.uk, or faxed to (+44) 1243 770620. This publication is designed to provide accurate and authoritative information in regard to the subject matter covered. It is sold on the understanding that the Publisher is not engaged in rendering professional services. If professional advice or other expert assistance is required, the services of a competent professional should be sought. Other Wiley...
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...operations separate INTEQ from its competitors. To keep this competitive edge, the company has a system for training, development and professional advancement for operations-based field personnel - takes our good track record and makes it even better. The training development program (IN-FACTS) provides a standardized career development path which utilizes a progression of both formal and hands-on learning, to turn potential into competitive advantage. It is the tool that enables field personnel to embark on a successful career within Baker Hughes INTEQ, Baker Hughes, and the oil industry. The training system is structured to provide an easily understood, orderly flow of learning experiences. These may or may not be in the same speciality, and allow our people to either concentrate in one area or to branch out into other disciplines. Movement through career progression is determined by industry experience and their skills and knowledge, which can be acquired through rigsite work and a variety of formal and informal training programs. The training programs are modular and are composed of formal course work, self-paced learning packages and on-the-job training. Overview of the Course All field...
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