1. Write a complete arrow-pushing mechanism for the synthesis of cyalume. OH CI afa CI- CI CI + NMe3 toluene 0 °C --> 75 °C CI CI What is its purpose in the chemiluminescence reaction
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Please clearly outline the mechanism for the synthesis of cyalume typed so that structures are clear.
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- 10. What is the major organic product generated in the reaction below? HO HO 40||!!!!!! (A) OH ...... (B) 1) 03 2) (CH3)2S HO O (C) H НО. (D)What is(are) the major final product(s) formed during the following sequence of reactions? 01 11 V 1.0₂ 2. (CH₂)₂S C₂H₂O 2 identical molecules ||| =PPhy < IV орна4. Protonation of alcohol A and subsequent loss of water, produces the intermediate B. CH3 CH; CH, CH, — с — сH, CH, CH;CH, - C- CH, CH; | OH A B (a) (i) Name alcohol A. (11) What type of species is intermediate B? (iii) Draw the structures of the two alkenes which can be formed from species B by removal of a proton. Label as C the alkene which shows geometrical isomerism. (b) The intermediate B is readily attacked by nucleophiles such as water. What is the essential feature of a nucleophile? (c) State what final colour you would see if alcohol A were warmed with acidified potassium dichromate(VI). Explain your answer. Colour Explanation . (ii) Draw two structural isomers of alcohol A which form branched chain ketones when heated with acidified potassium dichromate(VI), but which could not form alkene C on dehydration.
- Q1/Complete the following reactions and mentioning wywaila NaOCH3 CH3OH + methylacetate O₂Et NaOEt ethylace to acetate CO₂CH3 4) EtO2 5) 2-Cyclohexene-1-one name of the reaction? ( NaOEtfonmetion of 3+ (a) The coX (NH3)5 and SCN differ by NO more than a fuctor rate con5tunt for the 12t from forx-Ge, B2 Ng of two.eehat is the mechanism of Substitution?a) Complete the following reactions: (i) H3C-C-Ci + H2O A + B (ii) HO H;C. CH3 SOCI, с + D + so, (iii) H;O* HCN E F CH;CH, `CH;3 (iv) CH;CH,CH,CH,CH,Br + NH3 G + H excess
- ProVide the maJor Product for cach of the following reactiuns H more Than one 5 formed, Circk the product major Product 2. NBS, hy 1- Bra, FeBr3 2. H2504 -S03H T.Bra, FeBr3 Mg co) 3 CH2O 4. H307 workup (0) 2.Explain the observed stereo-selectivity in the formation of product using Felkin-Anh model. (c) EtMgBr, Et,0 но н Ph. Ph. `Et H. H. H3C H H3CPLEASE HELP SHOW STEP BY STEP ELECTRON FLOW MECHANISM FOR THE FLOWING REACTION STEREOSELECTIVE ALKENE SYNTHESIS BY THE HORNER-EMMONS REACTION H (EtO), PCH,Ph (EtO),PCH₂Ph cat. BuчN* Br 50% NaOH hexanes ?
- 1. Provide the structure of the product. Determine whether the reaction involves either carbocation, radical or carbene intermediate. Write the mechanism for formation of the product (for reaction involving radical, include the mechanism for initiation step, when applicable). (a) H+ Product (b) CH3OCH₂CI BuLi (c) (d) Br Ph OH Product H* Bu3SnH, AIBN CO₂Me Product ProductA Studen t is Purformad the falliwing reaction and atter Com plet ing the work-up Step and isulating be cnde Aridunet iP was detenmined they t The starting matunal Was still Hcsent The student attmped to peaty The Aroduet by columo Chamatagraphy wih Slia gel column and ethyl 94tate as the eluant- The studn't Collected 1o fractiuns and ran g TLC of cnch fraction 4 8 9 10 cunclude about the Separatión ? (whch fractiun s What Can yoy Contained which compund? Are there mixed fract win s?)Nitration of methyl benzoate: Weight of filler paper: 0.682g Mp product: 76-77 C Nitration of Acetanilide: Weight of filler paper: 0.691g Weight of filler paper product: 1.232g Mp product: 212-214 C Compound MM (g/mol) ortho mp (oC) meta mp (oC) para mp (oC) Nitroacetanilide 180.16 94 155 214-217 Methyl nitrobenzoate 181.15 -13 78-80 94-96 Theoretical yield of acetanilde: 0.6664g Theoretical yield of methyl benzoate: 0.7317g find theoretical yield of methyl nitrobenzoate percent yield of your methyl nitrobenzoate and melting point of your methyl nitrobenzoate