Question

3.) What is the mechanism and main product for the following series of reactions? (5 points) 1.) Br, hv 2.) Na CN 3.) excess H2O 5.) What is the mechanism and main product for the following series or reactions? (5 points) 1.) I, hv 2.) NaOH 3.) PCC 4.) HN-NH, H cat. 5.) NaOH, H,O

What is the mechanism and main product for the following series of reactions?

Please show arrows, steps, main product and mechanisms of each clearly! Thank you in advance.

Answer 1

In first part,first free radical substitution takes place thenafter nucleophilic substitution takes place and finally after hydrolysis give final product. In second part,first free radical sustitution takes place then nucleophilic substitution,then limited oxidation by PCC then hydrazone formation and finally alkane formation.for detailed solution please see below.......
Solution: 37 1) Br, ho 22 NAN 37 excesi Hd -Coon C(Main product) 3) excess o (Hydrolyn SONAN -CN SINI OBY, free radical Substitution Mechanism steps Br2 17 i 13+ stehen + Pro + HRY (Cheiminating IS Bi - Car (Most stable free radicall will torm) stop in (chain terminati Take as R-CN for showing mechanism R-CEN HOR-GEN HOR-4=N R-CENA C:07 OU c - Nr. - C / M.. On N )

R - neo Ć- NH2 Proton R-coon 2. PR transfer orn n Therefore .CN fCOon 2) Naton 2) PCC & HN-NH₂, Ht cat 5) NADH, H₂O 12 I2, ha t 2 free radical Not on I Substitutim 3) Рcc LONHANH₂, Hit eat - -N-NM chy Noon, H₂O Mechanism 12 steps: I 2 h, I'ti Step D i à (Most stable , Stel : + i - free rad.cal) + (chain terminations on Leaving grup) acid. PLC is one of oxidising agent which Oxidises 2o alcohol upto ketone only not

17 cm una forma como 3 CP il protm transfer on On Chant- eng Wn-nn. ny - cng UN-N- 1 n on ( QN=N-n 57 CH₂-EN- chy - N=N-n си, а не см, и Chan+Nr. ht H₂O 0