46PM Mon Oct 2 O O O TO B3 NCH₂CH₂ S Provide a good lakomatory sypothesis of each target from derledes containing fewer than le carbors, plus any reagents that contain no more than two carbons H OL
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- Scheme 4 Thsan em quion on 121421 ONOT p o ont ra This ian questen OHposteto e servis onKOH, HO Et,0, 0 °C a ici Nw arvices MEOH, Et,0 NH2 Q27 Q28 ana Do NOT posa ko arervoes N2 an exam queston on 1241 Do NOT p NH,COOH Problem 4 Q29. Provide a reasonable synthetic scheme with reagents to convert 2- butanone into an aminobenzoate. No electron pushing mechanism is required. Just show reagents and synthesis intermediates. This is an esem queston on 12421 Do N posentre seo Th is an 12 n o m Nan ONaT servs Thean m qon on 121421 De NOT os n The exam queston on 121421 Do NOT postto ore servicesPropose a mechanism for the following reaction: OC u Fe. OC Fe Ph;P Ph;PWhat is the likley product of the reaction sequence shown? MgBr MgBr ОН РСС H2O K,Cr207/H2SO/H2O H,O CH2ČI2 ether ether ОН HO || II IV V O II O IV O v
- Please devise Syntheses of the product Campaunds belou from ther respective Startng madenal Each of the synthesis will require mutiple steps E you Cant thok of a reagent for a partiCular reacticn Just write the pradučt and Continue from that Campaund 17 BrFill in the missing reagents a-h in the following scheme:Plastic photochromic sunglasses are based on the following reversible rearrangement of a dye inside the lenses that occurs when the lenses are exposed to sunlight. The original dye absorbs UV light but not visible light and is thus colorless, while the rearrangement product absorbs visible light and is thus darkened. (a) Show the mechanism of the rearrangement. (b) Why does the rearrangement product absorb at a longer wavelength (visible light) than the original dye (UV)?
- The following molecule was formed by a Robinson annulation reaction. What reactants were used?Draw the products formed when each ester is treated with lithium hydroxide and water. Reaction A Select Draw Rings More CH3CH₂CH(CH3)OC=OCH(CH3)₂ LiOH H₂O |||||| HO 3 Ć H O OH Li Erase Q2Q-C-H+ CH3- pluatata HO- CH₂0 Vanillin NaOH -C-CH3 Show Transcribed Text Result A H₂SO Result B can you please draw the reaction mechanism for result a and result b using chem draw. Thanks!
- ggest an efficient synthesis for the following product starting from the correspondi rting material ноStep 2: A hemiacetal formation has a similar mechanism to the hydrate reaction, except 1 equivalent of alcohol is added instead of water. 1² R₂ R₁ LOR3 R₁ R₂ The hemiacetal reaction is also reversible and can also be catalyzed by either acid or base. Hemiacetals are not usually isolated, except in the formation of 5- and 6-membered rings, as often seen in carbohydrate chemistry. Identify the hemiacetal formed from the intramolecular cyclization of the molecule shown. OH H OH R3OH OH OH OH CH₂OH NaOH ?