Write A for anti- addition or S for syn-addition to alkenes on the line provided

Question

Write A for anti- addition or S for syn-addition to alkenes on the line provided for each of the following: _____ Hydroxylation with cold Permanganate oxidation _____ Catalytic hydrogenation ______ Bromination Chlorination ________ Halohydrin formation _______ Hydroxylation with Osmium tetroxide _____ Hydroboration/oxidation (Non-Markovnikov addn) _____ Hydroxylation by acid - catalyzed epoxide hydrolysis _______ Epoxidation with a peroxyacid _____ Carbenes addition to yield cyclopropancs _______Ozonolysis in forming the molozonide For reactions of alkynes, write on the line provided A for anti-addition when the corresponding E-alkenes are formed or S for sys-addition when the corresponding Z-alkenes are formed. _____ HCl or HBr in ether ____ Cl_2 or Br_2 in Methylene are formed. (Dichloromethane) _______ H_2/Lindlar catalyst: (1) Pd/CaCo_3 (2) Pb (OAc)_2//quinoline ______ Li/Nh_3 or Li/C_2 H_3 NH_2 Match Column B Items with Column A Items Column A _______ Reagents used to prepare the nonMarkovnikov product ________ Reagent used to prepare an epoxide ________ Reagent used to carry out vigorous oxidation _________ Reagent used to form dichlorocarbene ________ Reagents used to convert alkynes to methyl ketones ________ 1, 1 -disubstituted substituents _________ 1, 2- disubstituted substituents Column B KOH m-chloroperoxybenzonic acid hot alkaline MnO_4^- NaNH_2 vicinal- HgSO_4 H_2O/Hg SO_4 HBr/ROOR H_2/Pd/C germinal

Explanation / Answer

1Q)

hydroxiylation -S

catalytic hydogeation-S

bromination-A

chlorination -A

halohydrin -A

hydroboration-S

acid- catalysed epoxide hydroysis-A

epoxidation-S

carbene addition -S

ozonolysis-S

3Q) g.b.c.f.d.a.i

--------g(.In presence of peroxide like hydrogen peroxide or benzoyl peroxide non- markownikoff product is formed.)

-----------b(.mCPBA(meta chloro per benzoic acid)

------------c(acidified potassium dichromate or alkaline KMnO4 are strong oxidising agents)

------------f

-----------d

----------a

-----------i

4.

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