Question

10. Please Check 1 by 1 and read carefully. I would need a perfect score for this . Thanks

Select the keyword or phrase that will best complete each sentence A Claisen reaction is a nucleophilic substitution in which an enolate is the nucleophile Key terms: Robinson annulation Aldol condensation: An aldol reaction in which the initially formed p hydroxyl carbonyl compound loses water by dehydration. Claisen reaction Aldol condensation Dieckmann reaction: An intramolecular Claisen reaction of a diester to form ring, typically a five-or six-membered ring. a Michael reaction Michael reaction: A reaction in which a resonance-stablized carbanion (usually an enloate) adds to the B carbon of an a.B-unsaturated carbonyl compound addition Aldol reaction: A reaction in which two molecules of an aldehyde or ketone react in the presences of base to from a B-hydoxy carbonyl compound. Aldol reaction substitution Robinson annulation: A ring-forming reaction that combines a Michael reaction with an intramolecular aldol reaction to form a 2-cyclohexenone Dieckmann reaction Claisen reaction: A reaction between two molecules of an ester in the presence of base to form a B-keto ester Identify the starting material required to prepare the following compound by either aldol or Claisen reactions. Select all that apply H OH H OH and and H C OH OH HT and and OH OH :O Identify the starting material required to prepare the following compound by either aldol or Claisen reactions. Select all that apply. H and H H and and and Identify the starting material required to prepare the following compound by either aldol or Claisen reactions. Select all that apply C and and and and H and and Identify the product formed in each Robinson annulation from the given starting materials. 000 doo A. HO H2O B HO H2O Identify the product formed in each Robinson annulation from the given starting materials A HO Но но Н-о Determine the products formed when butanal (CH3CH2CH2CHO) is treated with each reagent. со сн, CHC0,снъ Cно NaOCH>, CH,он со-сн, Co,CH H Cно OH сно HO OH CH0, H,о OH H OH сно 1 LDA Г2] сH,сно: (3] Н,о OH OH H H,CO,c co,CH сно NaBH OH Cн,он Reset Identify the intermediates and product in the following reaction sequence. 1]0 121 (CHab HO 7 8 1 CrO H,SO HO 5 2 HO 2 сH,сH,он H2SO 1) NaOCH,CH CH,сH,он [2) Н,о° HO 6 4 Reset

Answer 1

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