Check work HBe (2 eq) 1-CH,CH Br H-Cac- Na 2.NaNH, 3 (CH,), CBr Lindlar's catalyst Lindlar...
15. H.Pd 16. 17. 17. H3C 1) NaNH, 2) CH CH,Br 3) Lindlar's H2 18. 1) KMnO4(aq) warm, OH 2) H30+ 19. -CH3 excess Br? 20. 1) 1 equiv. HBr. peoxides 2) HCI
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
1) KMnO4, OH 2) H30+ H2, Lindlar's Catalyst H₂. Pt Na, NH3
write the major product of the following reactions W H H, Lindlar's catalyst , Lindlar's catalyst, 3 NaNH , liquid NH. CHECHC66 (c) 1. CI, CC14 2. NaNH, liquid NH Punktas fiquid Nets Br Li + () /=-Li + Y BI
Which of the following is the correct structure of Compound A? 1) Br, CH C 2) 2.6 eq. NaNH. NH3の 3) H2. Lindlar's catalyst Compound A IV. Br V. OC. Il O D.I O E. IV
When do you use Lindlar's catalyst over Na/NH3? For this question, why was Na/NH3 used to make an alkene in the middle of the process instead of Lindlar's? H2 HBr Br Lindlar's NaNH2 catalyst Na, NH3 1) BH3 Br OH 2) NaOH H2O H2O TsC pyridine 2 H2SO4 HgSO4 OTs H20
show work pls! H2 Lindlar's Catalyst 2. H,02 NaOH 1. BH CH-CHE нс 3. Draw the complete arrow-pushing mechanism for the following reaction. (1.5 pts total) product after step 1 product after step 2 CICI Br- Br 1. Br2 1. C12 show mechanism below show mechanism below
What is the major product of the following reaction? HBr (1 eq.) Br Br А Br B с D Br A B С What is the major product of the following reaction? COOME A COOME COOME COOME COOME COOME B D COOME COOM COOM COOME OA OB D What is the best method to synthesize the following product from the given starting material? Br Br H A 1) NaNH2 2) CHgBr 3) H2. Pd/C 4) Br2 B 1) NaNH2 2)...
1. Road-map: NaNH2 1. LDA 2. CH,Br Na/NH 1. O3 2. DMS H2, Lindlar's cat. 1. KMnO4 OH, heat 2. Н,о* 1. OsO4 2. H2S Br2, H2O NaH
Predict all possible products with stereochemistry if applicable. 1.03 2. Zn, AcOH H2, 25 °C 2. W Lindlar's Catalyst 1. Bre, CCIA 2. excess NaNH, NH3(1) 3. H30+ 3. 1 % Pd(PPh34 Š a le in reprehen 4. 100 °C 1. Na, NH3 (1) 2. H2O