Tiêu đề Conversion 10.pdf ✅

Q.1 R is C3epim or of D-Altrose (1) 2 3 2 5 2 4 2 2 23 23 HCN/NaCN (i) SnCl /HCl (ii)dilHNO (i) V O ,500C (ii)H O (iii) LiAlH , Et O (ii)H /Ni (iv) Red P/HI (v) Al O Cr O / (P) (Q) (R) (S) (T)       (2) 3 2 2 4 2 3 (i) [Ag(NH ) ]OH (i) H (slight) (i) DIBAL (ii)H (ii)MeOH(1eq.)/HCl (ii) H O (iii) SOCl (iii) HIO (iv)DIBALthen H O (iv)H O (P) (U) (Y) Organic products       (3) 2 324 2 2 2 2 (i) Br /hv (ii) NaOH (iii) (i) HNO /H SO (i) Br /H O (iv) (ii)Sn/HCl (ii) Zn/ (v)Hot HI (iii) NaOH (iii)Mg(excess) (vi)NaOI (iv) HNO (iv)H O (v)H O (v)O /Zn (vi) Zn Hg/HCl (S) (V) (W) (X) NaH EtI      (4) 2 4 3 3 2 2 2 3 324 (i) Me SO ,NaOH (i) CH Mg Br (ii) T,AlCl (ii)H O (iii) Zn Hg/HCl (iii)H SO , (iv) SOCl (iv)Pd/C (v)AlCl (v)HNO /H SO (V) (Z)   (5) 3 2 4 2 6 (i) Na/Liq.NH (ii) m CPBA(1eq.) (i) O /H O (iii) HIO (ii) B H /THF (iii) (iv) PCC N2H (S) (a) (b)    (6) 2 X H SO 2(S) (d)[Find all possible monobromo derivatives]  (7) (i) (CH2SH) /HCl (i) CH3 I(2eq.) conc. (ii)BuLi(2eq.) (ii)HgCl2 /H2O H2SO4 (X) (c)   (8) 2 (i) O3 /H O (ii) NaOI (iii)H ,Pd/ (iv)(X),H (c) (e)   (9) (i) CO2 /NaOH (vii) H3O (ii)H (iii) Ac2O/py (viii) H , ∆ (V) (g) (h)  (ix) CH3MgBr (x) NH4Cl (xi) Conc. H2SO4 1 (i) Br/H2O 2 (vii) LiAlH4 then PCC 4 3 4 [3 gm] [x gm] [75%] 2 [12 gm] [10%] [x gm] (iv) LAH (v) HCl/ZnCl2 (vi) NaCN     Conversion 10