LOSSEN REARRANGEMENT COMPLETE CONCEPT FOR CSIR NET/GATE/IIT JAM

The Lossen rearrangement is the conversion of a hydroxamate ester to an isocyanate. Typically O-acyl, sulfonyl, or phosphoryl O-derivative are employed. The isocyanate can be used further to generate ureas in the presence of amines or generate amines in the presence of water.
#LOSSEN #ISOCYANATE #AMINES

[@yoga9455]

How sir c6h5no2 act as EDG? See 9.35

[@TETRAHEDRONCHEMISTRYCLASSES]

C6H5NO2 is electron rich as NO2 can suck electron density, remember This group is migrating along with electrons thus when it migrates it easily form bond, in this context I am saying it is good electron donor.

[@BCHSURIYADEEPAN]

@@TETRAHEDRONCHEMISTRYCLASSES sir,if it's donating electrons....then R-Carbonyl bond will become stronger..so it'll be hard for the R group to migrate in the rds...this point is contrast with what you said in the video ... please explain sir...

[@TETRAHEDRONCHEMISTRYCLASSES]

Plz check earlier reply you may find your answer.

[@BCHSURIYADEEPAN]

@@TETRAHEDRONCHEMISTRYCLASSES understood sir....thank you.....