874 Problem 3 of 20 Submit Select to Draw Pd(OAc)2, PPh3, EtзN pre CH3 Q Version: 3.133.20 + 4998 production 874 Problem 3 of 20 Submit Draw the structure of the reactant needed to complete the Heck-Mizoroki coupling shown below. + Select to Draw Pd(OAc)2, PPh3, EtзN CH3 Q CH3
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- PROPOSE THE MECHANISM FOR REACTION. EXPLAIN HOW THE REACTION OCCURS AND WHAT KIND OF REACTION. 1) Grubbs-l CH2C2 reflux, 24 h OBn OH 2) Pd-C/Hz, EIOAC rt, 6 h, 67% 23In the Directive Effects in the Bromination of Vanillin, the following reaction was performed: сно сно Br2 CH,CH,CO,H Br OMe OMe OH OH vanillin 5-bromovanillin Which of the following are correct resonance structures of the intermediate cation in this reaction? Mark all that are correct. CHO сно CHO H. H. Н. Br OMe Br OMe Br OMe ÖH OH OH B CHO CHO Br H- CHO H. Br OMe Br OMe OMe OH OH OH D EPROPOSE THE MECHANISM FOR REACTION. EXPLAIN HOW THE REACTION OCCURS AND WHAT KIND OF REACTION. 1) Grubbs-Il CH2C2 reflux, 24 h LOBN COH 2) Pd-C/H2, ETOAC rt, 6 h, 67% 4 23
- 3. Provide the mechanism for the formation of product A: NBS, ROOR CCl45 subni Br ASC Br od privpilot tot msn JAQUI A B6. Complete reaction scheme below indicating reagents, catalysts and conditions, and side product trigil bezinslog si6101fon 290b 1l (b Senines levirba 6 gaubong nasamots gniwollot ads to doinW 01 sniowl (6 CH3 40 CH3 Scansgowi (d Ege nodie) ( nsgyxo (b NO₂ 19m02 2i gniwollet sits to mainW II HOReagent 3 list; commas separate the choices benzylamine,cyclohexlbromide, cyclohexylamine NaBH3CN catalytic H+, h30, NaOH Reagent 4 list; CH3(Ch2)2MgBr, cyclohexylamine NaBH3CN catalytic H+, Na2 Cr2 O7 H2O H2SO4,cyclohexabromide reagent 5 list; cyclohexylamine NaBH3CN catalytic H+,CH3(Ch2)2MgBr, cyclohexabromide, benzylamine
- In the Directive Effects in the Bromination of Vanillin, the following reaction was performed: CHO сно Br2 CH,CH,CO,H Br OMe OMe OH OH vanillin 5-bromovanillin Which of the following are correct resonance structures of the intermediate cation in this reaction? Mark all that are correct. CHO CHO CHO H. H. H. Br OMe Br OMe Br OMe OH OH A B CHO CHO Br H- CHO H. Br OMe Br OMe OMe OH OH OH FPredict the products, if any, of the following reactions. 20-35 (a) ascorbic ac (1) LiAlH4 -COOH (2) H3O+ (b) (1) NaCN CH₂Br (2) H3O+, heat (c) (1) SOCl2 (d) KMnO4, H₂O oct-4-yne (warm, concd.) (2) AlCl3 COOH (e) CH₂OH Na2Cr2O7, H2SO4 (f) Ph (1) BH3.THF CH3CH2-CH-COOH (2) H₁₂O+> College Of Agr, Eng & Science > School Of Chemistry & Physics > Westville > 2021 yTests and Quizzes > Organic Summative Test 2 30 September 2021 For the reaction of ethylchloride with sodium hydroxide via the SN2 mechanism, we get inversion of configuration because NAOH CH;CH2CI: Select one: O a. the reaction occurs in two steps with the formation of a transition state complex. O b. the leaving group leaves which allows the nucleophile to attack the alkyl halide. Oc. the leaving group leaves to form a transition state complex which favours inversion of configuration. o d. the nucleophile attacks the alkyl halide from the opposite side of the leaving group whilst the leaving group is attached. Clear my choice Next page & 8 R
- (20 pts) Alcohol A undergoes a remarkable acid-catalyzed conversion to B. Me Me Me HO Me I Me S Me Me + HA H H (cat.) Me Me Me Me A Hmm Hmm Me Me 11111 Me B Me Me a. Provide a mechanism. It may take a while to draw out all the intermediates, but consider this as a step- by-step process, although one could also imagine mechanistic alternatives where all or some of the steps are concerted. (attach additional page with your mechanism) b. What do you notice about the stereochemistry of each 1,2-shift in your mechanism (or at least where the stereochemistry of the shift is apparent from the structure of B)? c. How many 1,2-shifts are there in total? d. Give a one-word name to the final step in your mechanism.What is the expected product from the following Suzuki cross- coupling. Br HO B I OH Pd(PPh ₂)4 K₂CO3O Depart x Fall 20 x 101 Chem x b My Qu x DL Home x + O https://app. 101edu.co A To ... Question 18 of 24 Submit What reagents are required to convert tert-butylbenzene to p-tert- butylbromobenzene? Br А) HBr B) Br2 C) Br2, FeBr3 HC CH3 CH3 CH3 CH3 D) HBr, H2SO4 2:13 PM O Type here to search 底 80% 54°F 3/17/2022 OVO C PrtSc Insert Delete F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 * %23 &
