[Review Topics [References) Acyl transfer (nucleophilic substitution at carbonyl) reactions proceed in two stages via a "tetrahedral intermediate." Draw t tetrahedral intermediate as it is first formed in the following reaction. H3C CH3 HO-CH3 • You do not have to consider stereochemistry. • Include all valence lone pairs in your answer. • Do not include counter-ions, e.g., Nat, I, in your answer. • In cases where there is more than one answer, just draw one. C opy aste Previous Next

[Review Topics [References) Acyl transfer (nucleophilic substitution at carbonyl) reactions proceed in two stages via a "tetrahedral intermediate." Draw t tetrahedral intermediate as it is first formed in the following reaction. H3C CH3 HO-CH3 • You do not have to consider stereochemistry. • Include all valence lone pairs in your answer. • Do not include counter-ions, e.g., Nat, I, in your answer. • In cases where there is more than one answer, just draw one. C opy aste Previous Next

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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This is the general mechanism of nucleophilic addition of aldehydes and ketones. Nu: Nu- H-Nu Nu-Ċ-0-H + Nu: Represent the mechanism with the energy diagram showing the transition states and the intermediate.
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Q4. Alkyl halides are good at doing substitution (SN2/SN1) and elimination (E1/E2) reactions because the halide (X-) is a good LG. Alcohols on the other hand are not suitable for these reactions since hydroxide (¯OH) is a poor LG. However, an OH can be converted into a OTs (tosyl group) by reacting an alcohol with TsCl in presence of a base. An OTs is a good LG, and this allows us to indirectly (via OTs) use alcohols in substitution (SN2/SN1) and elimination (E1/E2) reactions. (4) OH TsCl NEt3 OTS Tosyl ester NaCN DMSO + HNEt3 Determine the major/minor products CH3OH heat OTS Tosyl ester TsCl = NaOCH3 CH3OH DBU Ś=0 CI
What alkene is needed to synthesize the following 1,2-diol using the given reagents? Be sure to answer all parts. CH3CH₂CH2 [1] OsO4 followed by NaHSO3 in H₂O: [2] CH3CO3H followed by "OH in H₂O: H OH OH CH₂CH₂CH3 draw structure... draw structure ...
29 minutes, 42 seconds. Question Completion Status: A Moving to another question will save this response. Question 15 What is not an expected product of the following allylic substitution reaction? NBS, hv Br Br Compounds II and II Compound II only O Compound I only O Compound II only A Moving to another question will save this response O O C
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Moving to another question will save the reporse Question 22 Using the pool of reagents provided below (table) complete the statement regarding the reaction below Fill in the blanks The following transformation can be accomplished by using the corresponding to the reagents from the reagents pool below set of reagents Write the letter in UPPERCASE AICHAL ZICul A) CH₂l2, Z(Cu) B) PhMgBr 2 H3O* C) H₂SO4, H₂O D) Na, NH3 E) Cl₂, CC, 1 mol F) HgSO4, H₂SO4, H₂O G) HBr, 1 mol H) B2, CC, 1 mol I) HCl, 1 mol J) Sia BH; 2) H₂O2, NaOH KI PhMaBrexcess 2) H.O K) PhMgBr excess, 2) H₂0* L) HCl, excess (M) Ch, CCI, excess N) HBr, peroxide O) Lindlar's catalyst P) Pd, H₂, ethanol Q) 03; 2) H₂O R) KF, Acetone S) KF, H₂O T) BHS. THF 2) H₂O2, NaOH
Review Topics] [References] Draw a structural formula for the major product of the reaction shown. CH;CH2 c=CHCH3 CH;CH2 Br2 H20 • Show product stereochemistry IF the reactant alkene has both carbons of the double bond within a ring. • Do not show stereochemistry in other cases. • If the reaction produces a racemic mixture, just draw one stereoisomer. Previous Next ChemDoodle Save and Ex tv ill I 11 МacBook Air DII DD F12 F11 F10 80 888 F9 F7 FB F6 F5 F4 F3 * & $ %3D 5 6. 7 8 9. 4 { P E R T Y H J K F + * CO
Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic steps. Be sure to account for all bond-breaking and bond-making steps. 1 I I :O: H Select to Add Arrows ether EN: CH2N2 :O: NEN: Problem 13 of 20 Please select a drawing or reagent from the question area Submit
Draw the structure of the major organic product of the following reaction. CH3 CH3CHC=CH₂ CH₂CH3 progress 1. Hg(OAc)2, H₂O 2. NaBH4 • You do not have to consider stereochemistry. • In cases where there is more than one answer, just draw one. [ ] در -Sn ChemDoodleⓇ®