Wow, 2L pressure reactor - that almost takes it out of laboratory scale. You might want to check with whoever your facilities manager is to be sure you can run that large a reaction under that much pressure inside your lab. Many labs and especially lab hoods aren't rated for containing pressure if there is a rupture.
It also takes you well beyond the glass pressure vessels. You will probably be searching for either a stainless steel pressure reactor or a glass lined pressure reactor. A quick google search turns up lots of suppliers for both.
Unfortunately, my last experience with a pressure reactor that size was nearly 30 years ago, and the reactor was an obsolete piece of equipment then. I don't think my input will be very helpful.