Identify the missing compounds: 4. Identify the lettered compounds in the following roadmap problem. 1)V PBr3...
Question 7 (20 points) Complete the following roadmap by filling in the missing pieces of the synthesis. 03 H2O2 larger product smaller product phosphorus tribromide 1) LIAIHA 2) H0 ethanoyl chloride Cl2 FeCl3 1) TMS-CI 2) Mg/ether 3) ortho para NaF (Ring closure) 1) NaBH4 2)H30+
Be sure to answer all parts. Identify the lettered compounds in the following reaction scheme. [1] CHşMgBr - [2] H20 H2SO4 ---→ [1] 03 A B [2] CH3 SCH; draw structure ... draw structure ...
The following three questions will all relate to the below multistep 'roadmap question: 1. NaNH, HC=CH. 2. CH,Br 3. NaNH, 4. CH CH Br 5. NaNH, Question 3 0.5 pts What is the product after steps 1 and 2 of the above roadmap? HC CH3 • HC5-CH3 Question 4 0.5 pts What is the product after steps 3 and 4 of the above roadmap? Нас- CH3 • H3C -CH3 H3C CH D Question 5 0.5 pts What is the final...
Are the following compounds chiral, achiral or meso? b. Please state whether compounds IV and V are chiral, achiral, or meso (6 pts). Ph F3 CH3 Нас. Ph Н Br CI H Br CF3 IV V
2. Draw the missing structure 1) Mg (2) H- PBr3 A B (3) H20 (1) Li (1) MeLi (2) H20 (3) N20 (1) (2) H2O (1) 03 (2) Me2S (3) CrO3/ H2S04/ H20 H2SO4 HBr (1) Li (2) Cul (4) H20 s(A-I)
draw the missing structures for the letters Scheme 1 Br S NaOH CI + A B + С H2N NH2 Scheme 2 1. MCPBA Na2Cr2O7 D E 2. H20, H30+ H30+ Scheme 3 1. LIAIH4 PBr3 F G Н 2. H30+ ether Scheme 4 1. H20, Hg(OAc)2 DMP H I 2. NaBH4 CH2Cl2 Scheme 5 OH tosyl chloride Na J K pyridine ОН
Identify the lettered compounds in the following reaction scheme. This reaction was used in the synthesis of a natural product HC CCH OR он CH PBr OR Draw the structures of compounds A, B, and C. Use R for both R and R' in the structures. Only 1 equivalent of alkyne is being used in the reaction. A. edit structure draw structure draw structure
V. Roadmap problems 1) CH30'Na B H2CrO xs CH3OH A CH3O Na D OH 1) NaOH, H2O E 2) HCl, H20 3) heat Br F H2O, acetone 2) H20, НCI H* Br осн, 1) Сн,оNa" A CH3ONa 1) NaOH, H,О C 2) HCI, НО 3) heat Насо 2) H20, HCI 1) CH3CH2MgBr ether Br EtO Na 1) NaOH, H2O B 2) HC, Hао 3) heat H* C A D OEt E, major product heat 2) H,о" 1) O3 2) (CH3)2S...
Provide the missing reagents. The reagents underneath the tabs include: a) LiAlH4 b) PBr3 c) NaOH/H2O, heat d) Br2 e) H3O+ f) NaOH, H2O g) Mg, ether h) PCC Trans-4-hexen-3-ol can be synthesized starting from acetaldehyde. One of the key reagents is ethyl grignard. 1. Synthesize ethyl grignard from acetaldehyde in the steps below using the OH reagents provided trans-4-hexen-3-ol 1. Select answer 2 Select answer Mg 3 3. Select answer 4. Select answer 2. Synthesize (trans)-4-hexen-3-ol from acetaldehyde. Select...
7 (2 pts). Which of the following reactions will proceed well to give the indicated compounds as the major products? Check all that apply. (0) So 1. HNO3, H,SO 2. HN(CH3)2 NO2 N (ii) 1. HNO3, H2SO4 2. HN (CH3)2 NO2 ci CI N (iii) OCH OCH, 1. HNO3, H,SO 2. HN(CH3)2 ON `N (iv) Осн. Осно 1. NaN(CH3)2, HN(CH3)2 2. Brz Br нас. нас (v) H2C AICI HC CH3 CH3 vi) HN HN 1) HNO3 H2SO4 2) NaOH, H2O...