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For questions 21-26, select the starting material, product or reagent system required to best complete the syntheses 21. OH 22. 1.BH 23. B. C.
For questions 21-26, select the starting material, product or reagent system required to best complete the syntheses 21. OH 22. 1.BH 23. B. C.
1. Select the best reagent(s) from the list below to accomplish the following transformations. In some cases, more than one reagent may be required. 3. HSO3(aq) A.HCI B. Br? C. Hg(OAc)/H20 D. BH3 E. H30*/Hz0 E. Hz02 G. Os04 H. Brz/Hz0 NaBH4 J. H2O, in aq NaOH Reagent(s)? NaHSO3 Product CH3 Starting Material сн. Н.c = — сна BR — Br Br CH₂ На сна нс сна HC нас нас н сну нас НАС СНА оfo/Acal НО н а )...
7. Which reagent is best used in the reaction shown
below?
Which reagent is best used in the reaction shown below? ОН NaOH H2SO LIAIH4/H20 На, Pt
23) Select the best reagent(s) to accomplish the following transformation. a) i) 2 CH3CH2MgBr; ii) H30+ c) CH3CH2Br b) i) (CH3CH2)2CuLi; ii) H2O d) i) 2 CH3CH2Li; ii) H30+ 24) Select the best reagent(s) accomplish the following transformation. NH2 a) i) LiAlH4; ii) H30* c) H2O b) SOCI d) H30, heat
Which reagent would best complete the reaction outlined
below?
Which reagent would best complete the reaction outlined below? Ketone cat.HCI 11 IV V VI
Select the best reagent that will promote the following transformation. OSO2CH3 N3 (R)-CH3CHCH2CH3 (S-CH3CHCH2CH3 O NaN3, DMF O NaN3, MeOH O IN3, DMF O HN3, MeOH
Choose the BEST reagent for carrying out the following conversion. CO,CH3 COZCHz OH COH СОН Select one or more: CrO3, pyridine NaBH4, ethanol LiAlH4, ether H/Pd
Select the best alkene to produce the ether shown using the given reagent. 1.) Hg(OAc),/CH, он ? 2.) NaBH а. b. C.
In each reaction box, place the best reagent and conditions from the list below. A reagent may be used more than once.) Alkylating with ethyl bromide in steps 2 and 4 will lengthen the alkyne by two carbons at both ends but will not introduce the primary alcohol functional group.
In each reaction box, place the best reagent and conditions from the list below (A reagent may be used more than once.)