Claisen rearrangement Study guides, Class notes & Summaries

1. If the delta G'° of the reaction A --> B is -40 kJ/mol, under standard conditions the reaction: A) is at equilibrium. B) will never reach equilibrium. C) will not occur spontaneously. D) will proceed at a rapid rate. E) will proceed spontaneously from A to B. E For the reaction A --->B, delta G'° = -60 kJ/mol. The reaction is started with 10 mmol of A; no B is initially present. After 24 hours, analysis reveals the presence of 2 mmol of B, 8 mmol of A. Which is the mo...

--NO2 + Sn/HCl - Correct Answers>Clemmenson Reduction --NH2 1,2-addition conj double bonds + RMgX or LiAlH4 - Correct Answers>Nucleophiles attack the carbonyl directly. Strong nucleophiles: Gringards, NaBH4, LiAlH4 1. (2) esters CH3--C=O--OEt + NaOR, EtOH 2. H3O+ ketone + (ester) CH3--C=O--OEt + -OR + H3O+ --> - Correct Answers>Claisen Condensation enolate ion of one ester acts as nucleophile attacking another ester 1. NaOR, EtOH 2. H3O+ Anhydride for mixed 1. BH3/TH...

Organic Chemistry: Structure and Function by Neil E. Shore and K. Peter C. Vollhardt. Chapter 22 review. Topics include benzyllic reactions and mechanisms.

Answer Key on last page Chapter 27: Pericyclic Reactions 1. Which of the following statements about pericyclic reactions is true? A) Pericyclic reactions occur by way of ionic intermediates. B) Pe ricyclic reactions occur by way of radical intermediates. C) Pericyclic reactions involve multiple steps. D) Reactive intermediates are not formed in pericyclic reactions. 2. Which of the following statements about pericyclic reactions is true? A) In pericyclic reactions, bonds are broken and formed in...

CHEM 2420 ---Organic Chemistry II Fall 2015 Mid-Exam No. 2: Chapter 17-18 (Form A) Name: ÿ'ÿ,ÿt ÿ-,4 Instructions: A) Please print your name on the line above. B) Make sure you have 12 pages. C) Good luck! Question Score Multiple choice /80 Free response Bonus Total /20 /5 /105 1 IP aÿ.,o e Section 1. Multiple Choice (80 points) Bubble the choice that best completes each phrase and/or answers the question on the Scantron sheet provided. Answers written in this section of...