[Guest]

Bulb-to-bulb distillation in not very high vacuum is quite convenient to do on a rotavapor, especially for relatively big scale.
As a receiving flask one can use an splash-guard adapter (see the picture), which can be cooled by dry ice/acetone as usually done for kugelrohrs.
If the substance is highly volatile, one can join two splash-guard adapters in a raw.

The hint was done by S. Marchart and V. Enev (University of Vienna)

bulb to bulb distillation, kugelrohr, rotavapor