CH223 Exam 2 practice 17

CH223 Exam 2 practice 17 - CH223 Exam 2 practice 17

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CH223 Exam 2 practice 17 (Exam practice) SHAW ROBERT H CH 223, section 001, Fall 2008 Instructor: Kay Sandberg Web Assign Current Score: 0 out of 10 Due: Monday, November 10, 2008 07:00 AM EST Description This assignment is for practice only. The grade will NOT be used in any calculation therefore you do not have to do this assignment if you do not want to do it. The key and solution will be delivered after your first submission. Instructions The due date for this assignment is past. Your work can be viewed below, but no changes can be made. Request Extension 1. --/2 points The following starting material is isotopically labelled with O-18 (the isotopically labelled O is indicated by the asterick (*)). Draw the indicated products. Please note that other isotopically labeled reagents are also used. Assume that the products isolated have not undergone proton exchange with the solvent. Please do not include the asterick in your structure - it should be a regular O in the JME. Product A CC(C)O[D] CC(C)[OD] Product B CH223 Exam 2 practice 17 http://www.webassign.net/v4cgirhshaw@ncsu/student.pl?u=2008120718. .. 1 of 6 12/7/2008 1:51 PM
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CCC(=O)O CCC(=O)O Solution or Explanation The carbonyl oxygen appears in the product acid and the ester oxygen appears in the product alcohol. The proton on the alcohol comes from the hydroxide ion after it attacks the carbonyl carbon
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CH223 Exam 2 practice 17 - CH223 Exam 2 practice 17

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