I am looking for an old cartoon 60's or 70's

This is the story of the little Albert Einstein who is in class and villains want to steal his red briefcase...

Does anyone has it a memory?
Thank you for your help!

Maybe Young Einstein? This is a movie but it fits your descriptions. I researched ikt for you because I know how annoying it can be to not remember a show title.

http://rogerebert.suntimes.com/apps/pbcs.dll/article?AID=%2F19890804%2FREVIEWS%2F908040301%2F10 23&AID1=%2F19890804%2FREVIEWS%2F908040301%2F1023&AID2=

Sorry, that's not it! It is indeed a cartoon (animated film or short film).

Research that is an Einstein child goes to school and suffer little miseries...