Assigned as Homework O H22.9 Select the correct mechanistic step for the following reaction. 0 OH...
42. Which mechanistic step is INCORRECT for this reaction? O= OH (D) H + OH — 43. What is the major product of this reaction? HgC Ph SCH нот NaOET ЕОН, А | Phu Ph CH₂ (A) B) H₃ C CH (B) H₃C . - H Ph CH₂ - PH CH₂ 44. Which reaction conditions will accomplish this transformation? (A) H2, Pd/C (C) Na, NH3(1) (B) H., Lindlar's catalyst (D) H:0, H2SO.
4 1 Write these compounds in order of increasing boiling points. Identify a mechanistic step which does not occur in the reaction between excess of methylmagnesium iodide and ethyl acetate. :0: + CH3 - Mgi (A) HO HO OH no 1 2 3 (A) 1<2<3 (B) (B) 2<l<3 (D) 3<I<2 :0 (C) 2 <3 <1 CH-Mgl. (C) 2. Which one is the most acidic compound. (A) ОН (B) + CH3-Mgl (D) (C) (D) OH Identify one of the steps in...
What happens in the first step of this reaction? 0 o OCH; H + CH3OH OH The hydroxyl group of the alcohol becomes protonated The carbonyl oxygen becomes protonated The methoxy group of the ester becomes protonated The carbonyl carbon becomes protonated OH Ne Cryo H SOHO 1) PB, B2 2) H20 O OH Br H or Br OH Br Why is the following reaction not reversible? O Nao O Naci CI The reactants are more stable than the products...
The first mechanistic step of the forward aldol reaction in Scheme 2 is a Bronsted acid-base reaction between cyclohexanone A and ethoxide B. As you know from class, the pKa of ethanol (the conjugate acid of ethoxide) is about 15. The pKa of which species below best approximates that of cyclohexanone (A)? O C H3C CH3 CH3 acid 1 H acid2 acid 3 pKa 10 pKa 20 pKa 35
Select the correct reagent(s) for the following reaction and determine if it is an oxidation or a reduction 0 OH CH3CCH2 CH2 CO2CH3 → CH3CHCH2CH2CO2CH3 O NaBH4; then H30+ More than one of these is correct. OLIAIH//ether; then H30+ O CH3 MgI/EtOEt then water LiAlH[OC(CH3)313, ether
Review Complete the following reaction and identify the elementary mechanistic step. O Na Von Mo — + HSB MacBook Pro
20. Select the major product for the following reaction: OH H20+ CH OCHZ OH -CH; -CH₃ OCHZ b. OCH3 CH2 -CH3 OCH3 OCHZ c. : 1. montants will vield this product?
What is the major product of the reaction? HBr Select one: Br a. Br Br. O b. Br a C. Which polymer is formed from the following conditions? ||||| ROOR heat n a b Select one: 白。自 b.b C.C Which Fischer projection represents R-2-chloropentane? Select one: CH3 a. ci-to -CH2CH2CH3 H CH3 b. H+CH2CH2CH3 CI H C. H3C-CH2CH2CH3 CI CI d. Hgc +H CH2CH2CH3 What is the major product of the reaction below? ОН 1) LIAIHA 2) H20 Select one:...
1. Draw the final product of the following reaction OH PBt3 2. A key precursor step in the synthesis of Albuterol involves ring opening of an epoxide 3. Draw the final product for the reaction ?? [1] NaH [2] SH 3] H20 CI 4. Draw the product for the following reaction OH CH3 POCI pyridine 5. Complete the following mechanism (the first step is shown below): Co-s-oH H3C-C-C-CH2
name the mechanistic step that converts B to C 1. The following reaction was recently reported along with a proposed catalytic cycle below: O CO Pd(PPh3)le (1 mol %) CSOAC (1.0 equiv + THF, 60 °C, 16 h NH (Co. R 32 examples up to 99% yields PdL A NHR Co2 L Pg . Pd' L CO -Pd'L2 O NHR E R в D Rv Csl ACOH со CO2 СВОАС NHR C zac