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.Predict the appropriate structure for I-V. 1. Predict the appropriate structure for I-V. 1. NaOEt 3....
Predict the appropriate structure for I - V. 1 1. Predict the appropriate structure for I-V. 1. NaOEt 3. NaOH II 5. (0) LDA, -78 °C Eto 2. EtBr III 4. H30* / heat (ii) benzaldehyde 6. H30+ / heat 7. Et Culi V IV 8. Mel
4. Draw the products of the following sequences of reactions. 1) NaOET, HOE 1) NaOEt Eto OEt 2) H3O+ 2) Br | 1) LDA, -78°C 2) 0 H30+ heat H 3) NaOH, heat 1) LDA (1.1 equiv), -78°C, THE 2) CH3Br 1) CH3CH2MgBr 2) H30* H2, Pd-C LU H2SO4 NaOH, H2O 1) LDA, -78°C 2) HOE 3) H30+ 1) O3 2) CH2SCH3
le chatelier experimen Thursday). 1. What starting material and reagents are needed for the following multi-step synthesis (HINT: aldol reactions work best when the starting material can only form one enolate)? 5 он о D. NaOH, H2O, Heat F. HO E. NaOH, H2O G. LDA Starting Material: Reagents: 2. LDA is a strong, sterically hindered base and will form the enolate. Sodium hydride is a weak base and will form the _ - enolate. Kinetic enolates are the stable and...
Predict the product of the following reaction sequence. i. NaOet, EtOH ii. NaOH, heat iii. H20" iv. heat YOH O
3. (3x10-30 points) Reactions. Give the product structure of following reactions, indicate stereochemistry where appropriate. A) + Ph2pt-CHCH3 i. EtMgBr (excess) B) . H3o i. NaOEt Eto C) ii. H,O i. LDA D) i. C2Hs C12, hv E) Me AlC F) NaOEt OEt Ni, H2 H) heat OEt NaOEt EtO OEt Br
Predict the products for the following reactions. Note – think about the base being used – is it catalytic? If so, can the product molecule ring-close? NaOEt OEt 1) Ph,CuLi, -78°C 2) H20 1) NaOEt EtO OEt 2) NaOH/H20 3) HСИН20 4) Heat 1) R2NH, H 2) H 3) Н,о" 1) R2NH, H* Ph 2) 3) Нзо* NaOEt OEt 1) Ph,CuLi, -78°C 2) H20 1) NaOEt EtO OEt 2) NaOH/H20 3) HСИН20 4) Heat 1) R2NH, H 2) H 3)...
4. Predict the Product: NaBHA MeOH 1. LAH 요 2. H30* Ph3P li Php NaOEt EtOH 1. TBS-CI, imidazole ОН ОН 2. HO TsOH 1. NaOET 2. Br Br 3. NaOET 1. (1.1 equiv) LDA THF, -78°C 2. Br 1. (0.9 equiv) LDA THF, 0°C 2. Br
Which of the following sets of reagents and sequences of reactions can be used to complete the following synthesis? 0 0 HO OH Eto DET A. (1) Dimethyl malonate, NaOEt; (2) 1,4-dibromobutane, (3) NaOEt, (4) H30, heat B. (1) Dimethyl malonate, NaOEt; (2) 1,3-dibromobutane, (3) NaOEt, (4) H30", heat C. (1) Dimethyl malonate, NaOEt; (2) H30, heat, (3) 1,4-dibromobutane, (4) NaOEt D. (1) Dimethyl malonate, NaOEt; (2) H307, heat, (3) 1,3-dibromobutane, (4) NaOEt What is the product of the following...
15. Rank the following acids in decreasing (strongest to weakest) order of acidity. b. II> I>III > V> IV c. IV> III> I II >V ?. IV > V > 111 > 1 > 11 Answer: 6. Prov conversion. vide the reagents necessary to carry out the tollowing a. 1. Mg/ether ?. ??? 3. H30* b. 1. NaOH 2. KMn04/NaOH/H20 3. H30* ?. 1. NaCN 2. H30+, heat afi of these Answer:
Provide the major product(s) for the following Provide the major product(s) for the following reactions. Be sure to note stereochemistry and racemic mixtures. NaOH, H29 2 100 °Ç ? NaOH, H2O H 0°C H W H CCl3 OC (provide product of both steps) H a. Hn b. CHEM 370 W13 Homework Page 1 of 2 giorel Noot Hoi solu NOEL IN DER NaOH, H2O 100 °C Hv NaOET, H OEt EtOH 8. Eto- i. LDA, -78°C NaO Me MeOH Оме...