Sub Stereochemistry of Reaction The three Dimensional real atome around arrangement of the carbon the stereochemistry for single sty reactions d where substrate penta-coordinate partially neucleophile and neucleofuge leave the in the bonded with both the nucleofuge. Finally subebate ucleophile on having ne and new bond one more common with smaller less branch. carbon substrate In this reaction the Nu attack. reare side to the Molskave to the Simultaneously branched. leaving same smaller -vely charge change repulsion and less favorable carbon substrate for real side attack due to steric effect Ihas and lesser of nucleophile or negligeble The penta coordinate nucleofuge at TiS with nucleophile the right angle convert into -(180°) which has to convert product ment of So, in the product the groups -sionaly opposite in configuration- the arrange Stereochemistry) 3- 4) 3-Dimen Inversion It is the Horever. In complex stepwise reaction which takes place through the existance of intermediate to the such reactions Intermediate product In form by breaking of bond of nucllofuge from the subsbate in rate determining step leading in the formation of a tolvaleht to Intermediation Species, which later on rapidly form bond with nudiophile & form product with beel and While repeled toy Nevebophile place carbon substra charge the Identical storic effect of Billy branched groups check the attack of mudiophile. So for the reaction to takes the carbon- aberen place st the Such stepwise reactions mostly takes nucleofage. So, the only only way Othe nucleobrite try to bond opposite to the muellofuge Iconfiguration but nucliofuge on first step C planar and form here the the first tri coordinate ct intermediate. Since bucture is planar and the If the substate optically was op ready to active and nucleophile combine the planar inter. meditate. The nucleophile equally combin both side to the planar at perpendicular angle may be two opsbsite tthe optical intermediate and there products of activity independent optical activity Since the two products to the substrate. with spesite confignation waschemically be said that Such place with Recimisation. reactions takes