LLLL MA 22. Which of the following sets of reagents and sequences of reactions can be...
Which of the following sets of reagents and sequences of reactions can be used to complete the following synthesis? 0 0 HO OH Eto DET A. (1) Dimethyl malonate, NaOEt; (2) 1,4-dibromobutane, (3) NaOEt, (4) H30, heat B. (1) Dimethyl malonate, NaOEt; (2) 1,3-dibromobutane, (3) NaOEt, (4) H30", heat C. (1) Dimethyl malonate, NaOEt; (2) H30, heat, (3) 1,4-dibromobutane, (4) NaOEt D. (1) Dimethyl malonate, NaOEt; (2) H307, heat, (3) 1,3-dibromobutane, (4) NaOEt What is the product of the following...
4. Draw the products of the following sequences of reactions. 1) NaOET, HOE 1) NaOEt Eto OEt 2) H3O+ 2) Br | 1) LDA, -78°C 2) 0 H30+ heat H 3) NaOH, heat 1) LDA (1.1 equiv), -78°C, THE 2) CH3Br 1) CH3CH2MgBr 2) H30* H2, Pd-C LU H2SO4 NaOH, H2O 1) LDA, -78°C 2) HOE 3) H30+ 1) O3 2) CH2SCH3
le chatelier experimen Thursday). 1. What starting material and reagents are needed for the following multi-step synthesis (HINT: aldol reactions work best when the starting material can only form one enolate)? 5 он о D. NaOH, H2O, Heat F. HO E. NaOH, H2O G. LDA Starting Material: Reagents: 2. LDA is a strong, sterically hindered base and will form the enolate. Sodium hydride is a weak base and will form the _ - enolate. Kinetic enolates are the stable and...
4. Give the major organic product(s) for each of the following reactions or sequences of reactions. H Br 1. N.CN 2. NaOH,H,O, heat 3.H30 Ind o do CH,COOH 1. LiAlH, THF, heat 2.H,0 HO CH Br 1. NaCN, acetone 2.H30, heat h ome couco C:03, H30* он
Predict the products for the following reactions. Note – think about the base being used – is it catalytic? If so, can the product molecule ring-close? NaOEt OEt 1) Ph,CuLi, -78°C 2) H20 1) NaOEt EtO OEt 2) NaOH/H20 3) HСИН20 4) Heat 1) R2NH, H 2) H 3) Н,о" 1) R2NH, H* Ph 2) 3) Нзо* NaOEt OEt 1) Ph,CuLi, -78°C 2) H20 1) NaOEt EtO OEt 2) NaOH/H20 3) HСИН20 4) Heat 1) R2NH, H 2) H 3)...
С. D. Which of the following sequences of reagents will be used to do the following transformation? он Он А. 1. KOtBu; 2. Hg(OAc)2, H2O; 3. NaBH 1. TsCl, pyr; 2. KO B ; 3. BH3-THF; 4. H202, NaOH 1. H2SO4, heat; 2. Hg(OAc), H2O; 3. NaBH 1. TsCl, pyr; 2. NaOH; 3. BH3 THF; 4. H202, NaOH В. С. 8. Select the best reagents for the reaction below. Br Br Na ? А. 1. OsO4; 2. NaHSO3, H20 В....
Problem 22: Which of the following sets are countable? 1. N × Z 2. Q x Q x Q 3. R x R 4.(pe N p prime 7. Set of all infinite sequences of zeroes and ones. Problem 22: Which of the following sets are countable? 1. N × Z 2. Q x Q x Q 3. R x R 4.(pe N p prime 7. Set of all infinite sequences of zeroes and ones.