2) CHs LDA 1) LDA 3 2) Ci OH, H20 -OH, H2O CHO 1 LDA 2) CH3CH2Br Он, H2O 1) NaOEt 8 2) NaOEt OEt 10 Cl NaH 2 (excess) 12 HO Bra(excess) 13 HO LDA 14L THF, -78 C NaOEt, EtOH NaOEt, EtOH 16 NaOEt, EtOH 17 Br но 18 OOEt 1)NaOEt, EtOH 2) H3O 19 OEt 20 l HO o CHO + H20
1. LDA Et 2. CH CHI 7. Hoc LDA ? Co
ROBLE Predict the major products of the following reactions 22-5 (a) acetone )LDA (2) CH2-CHCH2Br (1) LDA (2) CH3I (1) LDA (2) CH3CH2I
ROBLE Predict the major products of the following reactions 22-5 (a) acetone )LDA (2) CH2-CHCH2Br (1) LDA (2) CH3I (1) LDA (2) CH3CH2I
1. LDA 1. LDA 2. CI 3, H30+ o 2. H 3.H30+
1) Predict the major product for the following reaction. (LDA is a strong base) 1. LDA H 2. نم H LDA 3. H20
1) LDA 2) CH,Br c)
1) NaOEt 2) H30+ 1) LDA, -87°C 2 O1)LDA, -87°C Cl O 1 NaH, 25°C O NaH, 250C 2) Cl
13. Complete the starburst below. CH2(CO,Et)2 1) LDA 3) H20 HOCH CH2OH Br2 TsOH J1) LDA 2) CH3l TsOH Ph3P-CH2
1) Lithium Diisopropyl amide (LDA) 2) CH3Br
1. LDA 2. Ph ? 3. H*, A 4. EtMgBr