racemiC 3. In each of the following problems, draw a starting material that could be used...
How would you synthesize the following compound starting with optically pure (R) or (S)-2-butanol? 8) How would you synthesize the following compound starting with optically pure (R) or (S)-2-butanol? H CN НаС. CH3 A) (1) (R)-2-butanol + TSCI B) (1) (S)-2-butanolTsCI C) (1) (S)-2-butanol + H2SO4 (heat) D) (R)-2-butanol NaCN/DMSO (2) NACN/DMSO (2) NACN/DMSO (2) HBr (3) NaCN/DMSO
7. (3 pts each) Write the correct reactant, reagents, or major product of the following reactions он TSCI Nal pyridine DMSO HBr EtOK EtOH CH2l2, Zn/Cu Et20 Br2 hv ONa Ph3PBr2 он elimination product Name: Page 6 of
4.2. Suggest reasonable mechanisms for each of the following reactions. The starting materials are racemic, unless otherwise stated. PhCH,CI + POCH3)3 — PhCH POCH3)2 + CH,CI сн. CH3 CH₂ OH BSCI CHA . CH₂ OH pyridine CH1 but e CH₂ CH₂ BSCI pyridine Bs BsO HC=CCH CH CH CI CF3CO H H percevonova co ,C=CCH2CH2CH2O2CF3 n nousemuannen NH2 TOH NaNO2, H20 NO2, H2 C H=0but (CH3), HCIOTY OH NaNO2, H20 NH, HClO (CH3), HOCH=0 Br CH₂ CH₃ CH₃ CH but...
Provide all organic products for the reactions below. Indicate the relationship between any stereoisomers (label as diastereomers or enantiomers). e. 1. Cl2, H20 2. KOtBu 1. NaOH, H20 2. PCC HO 1. cat. OsO4, H202 2. Br2, hv, CCl4 g. 1. ICH2Znl, Et20 2. MsCI, руг 3. LDA он h. CHCl3 KOtBu 1. HBr, 'BuoOH, hv 2. NaCN, DMF
Draw the major product for each reaction. он. CH3 heat N(CH3)3 a. LiAIH4, Et20 b. H30*/H20 1. NaCN, DMSO Br 2. a. LiAIH4. THF b. H3O+/H2O 1. NaN3, DMSO Br 2. a. LiAIH4, THF b. H3O /H20 1. HNO3, H2SO4 2. SnCl2 3. Br2 4. a. HNO2, H2SO4 H3C b. H2PO2 NH2 1. NaNO2, HCI, H20 но 2. HBF4
Write out the multistep reaction problems for each of the following: Starting Material Desired product (racemic) ОН OHN CH3 We were unable to transcribe this imageIZ
can someone show me how to do the work and explain it to me 15. How would you synthesize the following compound starting with optically pure (R) or (5)-2 HCN H,C, X CH3 A) (1) (R)-2-butanol + TSCI B) (1) (S)-2-butanol + TsCI C) (1) (S)-2-butanol + H2SO4 (heat) D) (R)-2-butanol + NaCN/DMSO (2) NaCN/DMSO (2) NaCN/DMSO (2) HBr (3) NaCN/DMSO
Give the major product(s) (indicating stereochemistry where appropriate) of each of the following reactions. он a) 2. 3. H (any strong acid) 1. HBr(1 equiv) MgBr, then 20 2. Mg then H20 OH c) 2. MeMgBr, then H20 3. PBr3, pyridine 4. NaCN 1. HBr (2 equiv) 2. NaNH2 (2 equiv) d) 1. BH3 2. HOOH, NaOH 3. TsCI, pyridine 4. NaSH
QUESTION 21 How would you synthesize the following compound starting with optically pure (R) or (5)-2-butanol? н CN HzC CH, A. (1) (S)-2-butanol + TSCI (2) NaCN/DMSO B. (1) (R)-2-butanol + TSCH (2) NacN/OMSO C(R)-2-butanol + NaCN/OMSO y ()-2-Butanol H2504 (heat) (2) HBr (3) NaCN/DMSO QUESTION 22 CHOIS
Starting Material Reagent Major Product? H2, Pd/C 1) OsO4 2) aq. KHSO: 1) CH3CO3H 2) NaOH/H20 Bra/H20 1) O3 2) Zn/HOÁC Provide reagents and/or starting materials to accomplish the following transformations. 40 OH –c=C=CH- CH3 CH3 -оснэ Онон H3C CH3 он any alkene CH₃ CH₂ HC- H.Pd/C optically active diterpene CH mixture of diastereomers 1) O 2) ZHOÁC H3C H3C CH3 + Hн H3c1