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- Provide the reagents necessary to carry out the following conversion. Br O 1. KOH; 2. Na2Cr2O7. 3. NaOH O 1. Na2Cr207/H2SO4: 2. H₂O 1. NaOH; 2. H₂O O 1. NaOH; 2. Na2Cr2O7/H2SO4/H20 O 1. NaOH; 2. H₂SO4: 3. H₂O OHi. LIAIH4 i. deprotection .CO2ME J CH2=CHCOCH3 protection ii. H30* ii. dehydration K H The synthesis of K from H involves a 3-steps reaction as shown above. ii. Suggest the reagents involve in the protection, deprotection and dehydration steps.Is the reagent for all elimination reactions conc. H2SO4? or just the reactions ones with OH?
- The decalinols A and B can be equilibrated using aluminum isopropoxide in 2-propanol (isopropyl alcohol) containing a small amount of acetone. Al[OCH(CH,),1, НО acetone ОН A B Assuming a value of AG° (equatorial to axial) for cyclohexanol is 4.0 kJ (0.95 kcal)/mol, calculate the percent of each decalinol in the equilibrium mixture at 25°C.Reagents a. CeHsCHO b. NaOH, ethanol c. Pyrrolidine, cat. H* j. Brz, H* d. H2C=CHCN e. H3O* f. h. BRCH2CH=CH2 i. Na* OEt, ethanol k. K* t-Buo I. CH2(CO,Et)2 m. heat CH2CH2CN LDA g. ELOC(=0)COEt Select reagents from the table to synthesize this compound from cyclopentanone. Enter the letters of the chosen reagents, in the order that you wish to use them, without spaces or punctuation (i.e. geda).Provide the appropriate reagents or product in the following examples. 1. OH O Он 2. 1. m-CPBA, CH-C MgBr THF; aq. HCI 2. Me 3. PCC, CH,C, 3. 1. LDA, THF; Mel 2. LDA, THF; Mel 3. EILI (2 equiv), Cul (1 equiv). THF: then Br 4. Meo Meo 5. Meo Meo. OMe 6. Br 1. BuLi, Ph,P. THE OMe Me 2. Br, MeCN 3. aq. HCI (4 M) Me 7. он но Et,N
- Identify a suitable reagent to carry out the transformation: OH h CI The best conditions for the transformation are HCOOH,H*; 1. Mg; 2. CO₂, THF; 3. H+, H₂O O 1. NaCN; 2. KOH, H₂O, A; 3. H*, H₂O, A O 1. NaOH; 2. K₂ Cr₂O7, H₂O, H₂O4 OH COOH12. Predict the products of the following reactions. HBr a. OH conc. H₂SO4 heat b. C₁ H₂C d. H CH3 OH OH H H Br₂/ heat Br NaOCH₂CH3 ethanol heat -CH3 NaOCH₂CH3 ethanol heat A HO 9. OH h. X Br f. j. OH conc. H₂PO4 heat SOCI₂ G conc. acid heat NaOCH 3 methanol heat methanolPaused Complete the following reactions. 1. +H₂O NaBH mild oxidation Complete the following reactions. 1. Base cat. H3CH2C CH₂CH + H3CH2C- C -CH2CH3 2. OCH3 H3C-C -CH2CH3 + H₂O OCH3 3. 4. CH3 NaBH4 H3CH2C C CH2CH3 + CH3CH2OH 5. mild oxidation
- 36. What series of reagents could be used to carry out the conversion shown? Br- COH Br A) 1. excess Br2/FeBr3; 2. CH3CH2CI/AICI3; 3. fuming H2SO4; 4. dilute H2SO4, heat; 5. NaCr2O7/H2SO4/H2O B) 1. CH3CH2CI/AICI3; 2. fuming H2SO4; 3. excess Br2/FeBr3; 4. dilute H2SO4, heat; 5. NaCr2O7/H2SO4/H2O C) 1. excess Br2/FeBr3; 2. CH3CH2CH2CI/AICI3; 3. fuming H2SO4; 4. CH3CH2CI/AICI3; 5. fuming H2SO4; D) 1. excess Br2/FeCl3; 2. H3O+, heat; 3. (CH3)2CHCI/AICI3; 4. fuming H2SO4 E) 1. CH3CH2CI/AICI3; 2. fuming H2SO4; 3. excess Br2/FeBr3; 4. NaCr2O7/H2SO4/H2OChoose the correct product for each reaction. A. B. C. D. PPh3 H PPh3 || I ။34) What is/are correct reagent(s) for the following reaction? A) i. Ós, CH3CO2H; ii. H2O2 B) i. KMNO4, OH", A; ii. H3O* C) PCC, CH2CI2 ???? OH OH D) i. KMNO4, OH", A; ii. H2O2