4. Draw the structures of the compounds A, B, C and D and missing reagents for...
4. Draw the structures of the compounds A, B, C and D and missing reagents for the first two steps. noma 1. NaNH / NH3 (5 / -33°c ASAB 2. CH3CH2CH,Br c . C Lindlar's catalyst - CF3COOOH/CHCIO - D
5. Draw the structures of the componds A, B, C, D and E. Indicate stereochemistry for the compounds D and E H2, Lindlar's catalyst Brz/ CCl4 NaNH / NH3 (5 / Br . A C excess Na, NH3 (1) E 6. Draw the structures of the componds A and B.
3. Draw structures of the compounds A and B and indicate relative configuration of the stereocenters (where applicable) using wedges and dashes. OH N1 A 1. X 2. H30* 1. OsO4 2. NaHSO, - в HBr A (CH3CH2)2COK (CH3CH2),COH B CHCE N°49 ano C2H5= Na/NH3 () A pesan, C2H5 — -33°C d. CH2Cl2, 20°C
5. Draw the structures of the componds A, B, C, D and E. Indicate stereochemistry for the compounds D and E H2, Lindlar's catalyst w Brz / CCI NINH, NH() Br A C excess Na, NH3() E
7. Draw the structures of the componds A, B, C and D. HgSO4 / H2SO4/ H2O Br NANH2 /NH3 () H H B 1. Sia2BH THF 0°C 2. H202 NaOH H20 В- (Sia2BH =
4. Draw the structures of the compounds formed in the following synthetic schemes. Br2 (CH3)2CHCH2CH3 UV NaOEt HBr C ROOR 1. Br2 E KOTBU ETOH 2. NaNH2(xs) 3. Нао light a. OH CHCH3 TsCl -сHа HBr B ROOR Кови A На C NaCECH 1. BH E 2. H2O2 NaOH F base Lindlars catalyst b. Br NaOMe HBr A ROOR 1. Br2 с 2. NANH2(xs) 3. H2O KOtBu В (CH3)2CCH2CH3 D MeOH с. Br2 NaOMe HBr c NaC CHD На (CH3)3CH...
From the following list, determine the missing reagents. a. NaOH. b. Hz, Pd/C C. NaOH, H202 d. NaoMe, MeOH e. Na, NH3 f. H2SO4 H20 g. NaNH2 h. CrO2, H2SO4 (aq) 1. NaBH4, MeOH H2SO4, MeOH k. C PK I. Met m. Phli n. H2, Lindlar's catalyst O. BH3, THE p. Nah q. H30+ workup r. PCC s. OsO4, H2O2 t 03. -78 °C - H - K
Identify the reagents necessary to achieve each of the transformations below. HINT: You will need to use at least one reaction from this chapter and at least one reaction from the previous chapter. The essence of this problem is to choose reagents that will achieve the desired stereochemical outcome: Choose from reagents (A-H): 1) Na, NH3 ( 1) H2, Lindlar's catalyst 2) OsO4, NMO 2) Br2 1) Na, NH3 () 1) NaNH2 4) Mel 2) Mel 5) Na, NH3 ()...
Identify the reagents for all three steps. Draw the structures of organic compounds A and B. Omit byproducts. Reagents given: - Mg - 1. ethylene oxide 2. H3O+ - PCC - 1. CH3CO3H 2. H2O - H2, Pt - 1. O3 2. Zn, H2O - 1. CH3MgBr 2. H3O+ - 1. O3 2. H2O2 Identify the reagents for all three steps. Draw the structures of organic compounds A and B. Omit byproducts.
3. Draw structures of the compounds A and B and indicate relative configuration of the stereocenters (where applicable) using wedges and dashes. vo.OH - 1. d 1. OsO4 + B 2. Hz0+ 2. NaHSO3 HBr A bo (CH3CH2)2COⓇK (CH3CH2)2COH > B H.C-= N °LⓇ. A. ^ . LOH C2H5= Na/NH3 () NH, ch. C2H5 - 2A- -33°C B CH2Cl2, 20°C