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action sequence best accomplishes this transformation? CH, OCH Brz KOH CH, OH HO hv Brz CH,...
Which reaction sequence best accomplishes this transformation HCECH Br -Br (2R,3S)-2,3-dibromobutane A) 1. NaNH 2. CH,Br 1. NaNH, Bri H2 2. CH,Br Lindlar's catalyst B) HBr HBr 1. NaNH, 2. CH,Br 1. NaNH, 2. CH, Br C) Brz 1. NaNH, 2. CH,CH, Br D) Na NH 1. NaNH, 2. CH.BA 1. NaNH, 2CH.Br
CH, Bre, light CI 1 Brz, AIBr; A B AICI HNO, c CO, HCI; Cuci, AICI3 H2SO4 D CH3 HNO3, H2SO4 H F Br SO; H2SO4 G E CO2 I со, A= B= C= D= E= F= G= H= Which reaction sequence best accomplishes this transformation: NO2 SOZH OCH3 Br OCHZ You a) SO3 H2SO4 Pd(OAC)2 HNO, H2SO4 AICI (HO)2B OCH b) HNO3 H2SO4 SO3 H2SO4 Br2 AICI: Pd(OAc)2, base (HO),B. OCH3 c) Zn(Hg) HCI, H20 HNO3 H2SO4 SO, H2SO4...
11. Which reagent would give you the best yield for the depicted transformation? ??? -BI a. HBr, ROOR b. HBr O HBr c. Br2, CCIA d. Brz, H20
predict the products of the following reactions
0 () CH,CH CCH,-C-OCH, NocCH (2) CH (3) Ho .heat (I) NaOCH2CH (2) H,O', heat (b) CH,-C-CH-C-OCH,CH,+ CH, (1) LDA -OH (c) Ph CH, () CH,CH,CH,Br (1) H2C-CH CH,Br (2) H0* OCH, NaOCH Ph (2) CH,CH,CH2CH2Br (g) product from part (f) (decarboxylation)
0 () CH,CH CCH,-C-OCH, NocCH (2) CH (3) Ho .heat (I) NaOCH2CH (2) H,O', heat (b) CH,-C-CH-C-OCH,CH,+ CH, (1) LDA -OH (c) Ph CH, () CH,CH,CH,Br (1) H2C-CH CH,Br (2) H0*...
Which sequence of conditions best accomplishes the transformation below? OH OH steps Select one: O a. i) LDA, -78 °C; ii) CH3CH2CHO; iii) Zn, HCI o b.i) NaOEt -78 °C; ii) CH3CH2CHO; iii) Zn, HCI O c. 1) LDA, -78 °C; ii) CH3CH2CHO; iii) NaBHA o d. i) NaOet 25 °C; ii) CH3CH2CHO;iii) NaBH4
Which sequence of conditions best accomplishes the transformation below? COH Select one: O a. 1) KMnO4, KOH; then H30*. 2) Cl2, FeCl3. 3) (CH3)3CCI, AICI: o b. 1) Cl2, FeCl3. 2) KMnO4, KOH; then H30*. 3) (CH3)3CCI, AICI: O c. 1) KMnO4, KOH; then H307. 2) (CH3)3CCI, AICI:. 3) Cl, FeCl3 od 1) (CH3)3CCI, AICI. 2) Cl2, FeClz. 3) KMnO, KOH; then H30*
Which sequence of conditions best accomplishes the transformation below? Br steps Select one: O a. i) Mg; ii) CO2; iii) ETOH, H, heat o b.i) Mg; ii) SOCI; iii) EtOH, pyridine O c. i) CO2; ii) EtOH, H+ O d. i) Na2Cr207, H2SO4; ii) SOCI; ii) EtOH, pyridine
What is the best set of reagents and order for the following transformation? OH ? 1) CH3CH2CI, AIC13; 2) Br2, hv; 3) NaOH 4) BH3-THF; 5) H2O2, KOH 1) Br2, FeBrz; 2) Mg, ether; 3) 4) H30+; 5) PCC 1) Br2, FeBr3; 2) Mg, ether; 3) H2CO; 4) H30+; 5) PCC 1) CH3CI, AlCl3; 2) NBS, hv; 3) NaOH; 4) PCC
Determine which of the following structures are chiral.
o CI TN, HO CH CH,OH HTOH OCH, HH HCI He Br H OH H CH, H HC CH H CH
Which of the reagents listed below would efficiently accomplish the transformation of CH,CH,CH=CHCH,CH,CHO into CHỊCH,CH,CH,CH,CH,CH,OH? 4 Select one or more: Va. KMnO b. NaBH, c. Br in CCIA d. H. Ni Ve. Two of these choices