which one is limiting reagent？？ OCEDUREہاںLab 3: Nucleophilic Addition to Carbonyl: Grignard Reaction with an Aldehydesubstance4-methoxybenzaldehyde1-(4-methoxyphenyl)-2-methylpropan-1-ol*●phosphoric acid, 1Msodium chloride,saturated solutionPreviewsodium hydroxide, 5%10 mL* amount varies, depending on size of drying tubeproductquantity0.68 g15 mL10 mLAssemble the reflux apparatusFlame-dry a round-bottom flaskmolar mass(g/mol)136.15180.21CHEMICAL ALERT• Weigh magnesium turningsAdd magnesium and iodine to the dried round-bottom flaskHeat the reflux apparatus to flood the apparatus with iodine vapor• Weigh 2-bromopropane and dissolve it in anhydrous diethyl etherAdd 2-bromopropane solution to the magnesium turnings and reflux tomake the Grignard reagentmp(°C)-1• Weigh 4-methoxybenzaldehyde and dissolve it in anhydrous diethyletherAdd 4-methoxybenzaldehyde portions to the Grignard reagentHeat 10 min with a hot-water bathPour the mixture into ice water and acidify it with phosphoric acidcustom page38• Dry the ether layer with anhydrous magnesium sulfateRemove the ether from the product• Weigh the productCharacterize the product using TLC, IR, and NMR2-bromopropane-flammable and irritantcalcium chloride-irritant and hygroscopicdichloromethane-toxic and irritantdiethyl ether-flammable and toxiciodine-toxic and corrosivemagnesium-flammablebp(°C)• Separate the layers●Extract the product into ether and wash it with 5% NaOH and saturatedNaCl solution24827. 1998 Cengage LearningH3CBrLab 3: Nucleophilic Addition to Carbonyl: Grignard Reaction with an AldehydeCH32-bromopropaneMgetherreagent with 4-methoxybenzaldehyde to form a secondary alcohol, 1-(4-methoxyphenyl)-2-methylpropan-1-ol, as shown in Equation 5.H3CMgBrCH3isopropyl magnesiumbromide+Equipment50-mL beaker100-mL beaker250-mL beaker*boiling chipBunsen burnercapillary tubescondenser, with tubingcottondistilling headdrying tube, with stopperOCH34-methoxybenzaldehydesubstanceReagents and PropertiesH2-bromopropanecalcium chloride, anhydrousdichloromethanediethyl ether, anhydrousdiethyl ether, solvent gradeiodinemagnesiummagnesium sulfate, anhydrouscustom page37H+H₂O2 Erlenmeyer flasks, 25-mL2 Erlenmeyer flasks, 50-mL,with stopper250-mL Erlenmeyer flaskfilter funnelfluted filter paper25-mL graduated cylinder4-oz jar, with lids*or concentric ring bath for hot-water bathpreparing micropipets* forFor glass stirring rodSor 250-ml beaker with foil or plastic wrap as cover for TLC developing chamberНО.OCH31-(4-methoxyphenyl)-2-methylpropan-1-olmagnetic stir barmagnetic stirrermagnetic wand*microspatulaquantity1.48 g8 g*5 mL20 mL22 mL0.02 g0.36 g2 gpaper towelPasteur pipet, with latex bulbpencilpH paper1.0-mL pipetproduct vial2 round-bottom flasks, 50-mLruler125-mL separatory funnel3 x 7-cm silica gel TLC plate2 support stands2 utility clamps2.0-mL vial, with capmolar mass(g/mol)123.0110.9984.9374.1274.12253.824.3120.37mp(°C)(Eq. 5)113bp(°C)594034.634.6184(Continued)

This is a two-step reaction. Step-1: 2-bromopropane reacts with Mg to give the Grignard reagent,…

Answered: which one is limiting reagent？？

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Chemistry

which one is limiting reagent？？

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter18: Ethers And Epoxides; Thiols And Sulfides

Section18.SE: Something Extra

Problem 62GP: The Zeisel method is an old analytical procedure for determining the number of methoxyl groups in a...

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