21oki... thnx [1]
PL. TELL ME OUT OF THE FOL. REAGENTS WICH ALL BRING INVERSION OF PRODUCT in their Substituition rextns.............
SOCl2 + Pyridine
SOCl2 + Ether
HBr or HI
if possible reason bhi batana...... Mostly to SN1 / SN2 jaise hi kuch hoga..... [3]
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10 Answers
11inversion in the product certainly ring the bells 4 the SN2 and SN1 is ruled out
i think that
SOCl2 + Pyridine and HBr or HI should bring the inversion of the products as per the reason mentioned [1]
11
R--OH + PCl5 , PBr3 , SOCl2 or SO2Cl2 -----with base-------> X--R
R--OH + PCl5 , PBr3 , SOCl2 or SO2Cl2 -----without base-------> R--X
eg. of base : Pyridine , R3N , etc.
And as mani said , Inversion means SN2 (BUT with few exceptions as above.)
SN1 means Retention in configuration along with Racemization.
1arey yaar SOCl2 aur pyridine ke combination main bhi inversion of configuration ke chances hote hain... SNi mechanism....
1are yaar when we use socl2 with pyridene there will be generation of strong nucleophile cl- with the reaction of formed hcl from h+,cl- in the first step and pyridene hence the reaction changes to sn2 and there will be inverted pdct