Answer Happy

Problem 35. From exam Which combination(s) can be used to prepare the target? and CH, MOBI (a) Only 1 (b) Only 2 (c) 1 and 3 and CH CH CH MgBr (d) 2 and 4 o OH ہے and CH CH CH Mger and CH, MgBr TARGET 4 (c) Part V. Reaction Mechanisms: 5 problems Problem 36. Select the reactive intermediate formed in the Friedel-Crafts acylation of toluene with CH,COCI and AICI (a) (b) Problem 37. Select the correct descriptions of the three key steps in this catalytic cycle. Arx + RB(OH)2 Pd(PPha), Ar-R Pd Arx Ar 3 Ar-Pd X L-Pd-R Ar 2 RB(OH)2 XB(OH)2 = (a) 1 = Reductive Elimination; 2 = Oxidative Addition; 3 =Transmetallation (b) 1 = Transmetallation; 2 = Oxidative Addition; 3 = Reductive Elimination (c) 1 = Oxidative Addition; 2 = Reductive Elimination; 3 = Transmetallation (d) 1 = Oxidative Addition; 2 = Transmetallation; 3 = Reductive Elimination