Question 25 Predict the FINAL (?) product for each of the following reaction or synthetic chain: 1. 2. H₂O CH3 1. 03 2. Me₂S -MgBr 1. MgBr 2. H₂O 1. LiAlH4 2. H₂O ? H NaBH4 MeOH A B C D HO H3C HO ABCD ов OD HO H3C
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- mmol of 1,3-dibenzoylpropane used to 4 sig. fig Used: 405 mg molecular weight: 252.31 g/molQuestion A wittig reaction experiment: Week 1 -》 preparation of phosphonium salt Materials : triphenylphosphine (5.3g),methyl Bromoacetate 3.36g (2.1ml) , ethanol 30ml . The yield obtained was 8.93g . The percentage yield obtained was 106.4% Week 2 -》 Formation of the ylide and wittig reaction Materials :Phosphonium salt (5g), napthyl-2- carboxwaldehyde( 2.65g), 20 ml of water and 5 nl of Nahco3. Yield obtained was 0.51g .Calculate the percentage yield Week 3: Solvent free wittig reaction Materials: Benzyltriphenylphosphonium chloride (0.5g ), 4 - Bromoabenzaldehyde (0.24g), Potassium phosphate (tribasi c) 0.275g .The yield obtained was 1.21g. Calculate the percentage yieldNeed help on last question. The reaction is a fisher esterification. My unknown ester is pentyl acetate (amyl acetate) and my unknown alcohol is 1-pentanol. 1.5 mL of 1-pentanol used giving us 0.013806 moles used. 3.0 mL of acetic acid used giving us 0.052604 moles used. Please show all work (including identification of limiting reactant)
- an alkene when acting with HCl shows a weight increase of 52.14% .What is the molecular formula of the alkene?question 1/ 1.0 g of a mixture containing 80% CuSO4.5H2O is taken and heated to 120 oC and 160 oC. According to this, find the weight reductions percentages a) at 120 oC, b) at 160 oCCompounds Mass 3-nitrophthalic acid used 200 mg = 0.2g 8% aqueous hydrazine used 0.4mL 3-nitrophthalhydrazide obtained 130 mg = 0.13 g sodium hydrosulfite dihydrate 0.6 g luminol obtained 70 mg = 0.07 g compute yield for nitrophthalhydrazide in the first step (assume nitrophthalic acid is limiting reagent) compute yield for luminol in the second step (using nitrophthalhydrazide as limiting reagent) compute yield for the overall reaction
- For 20.7 the solutions for part c and d dont seem right. Shouldn't reacting with 1 eq of H2 just take away the C=C bond and not the C=O bond. (H2 reduces C=C selectively to form a ketone according to page 738. Also the both the C=C and C=O bond should be reduced if excess H2 is usedAcetanilide (C6H5NHCOCH3, M = 135.2) can beprepared from aniline (C6H5NH2, M = 93.1) and aceticanhydride ([CH3CO]2O, M = 102.1) according to thebalanced equation below. C6H5NH2 + (CH3CO)2O →C6H5NHCOCH3 + CH3COOH If 10.0 g acetanilide is isolated from the reaction of 10.0g aniline with 10.0 g acetic anhydride, what is the percentyield of the reaction?An unkown solvent has a formula of C4H8O and molecular weight of 72.11 g/mol. Determine the ff: a.) index of hydrohgen deficiency b.) all possible functional group present base on IHD
- in a lab going from benzil to hydrobenzoin (using NaBH and ETOH, i received a 152% percent yield (1g of benzoin at the beginning and ended with 1.52g of hydrobenzoin) and i was just wondering what could've went wrong?IR given is furoin the second picture shows the structure of furoin, can you label the peaks given I'm bad at IRCase #1: Someone stole the net from the High Wire act at the Crazy Circus! Without it, the show can't go on! The CSI team found a liquid at the crime scene. When analyzed, it was found to contain 5.94% H and 94.06% O. Who committed the heinous act? Whodunnit? Cases: Suspect 1: George Norman Suspect 2: Becky Baker George Norman recently had an accident where he cut himself with a knife. He cleaned the wound with rubbing alcohol. The formula for rubbing alcohol (isopropanol) is C3H8O. Becky Baker is a world famous pastry chef. She had just finished baking a cake at the time of the crime. The recipe called for vanilla. The formula for vanilla is C8H8O3. Suspect 3: Liz Lemon Suspect 4: Ben Linus Liz Lemon just had her nails done and she still has traces of nail polish remover on her hands. Nail polish remover contains acetone. The formula for acetone is C3H6O. Ben Linus had been walking around in the rain for about an hour before the…
