Advantages of Batch Reactions
In many scenarios, single reaction volumes
of more than 100 ml are required. Although
these volumes and beyond can easily be
accommodated in reflux glassware, open to
atmospheric pressure conditions, there are
many distinct advantages to performing
reactions in a closed vessel.
These advantages derive from the ability to operate at temperatures significantly above
the normal boiling point of the reaction
mixtures, and to accommodate safely the
corresponding elevated vapor pressures.
To address these needs, Milestone has developed the BatchSYNTH system, a
dedicated labstation for scale-up of
microwave-enhanced chemistry.
The reactor
The BatchSYNTH is equipped with a
vertically-mounted high-pressure PTFE-TFM
reactor with an array of advanced capabilities
and safety features. The BatchSYNTH reactor
has a volume of 300 ml. It can operate at
sustained temperatures up to 230° C, and
pressures up to 30 bar, without loss of
reagents or volatile fractions.
Fast cooling is
performed by an internal cooling finger, and
the homogeneity of the reaction mixture is
ensured by a built-in magnetic stirrer. As with
all Milestone synthesis reactors, temperature
and pressure are monitored directly by
internal probes. In addition, the reactor is
fitted with gas exchange ports, so that the
chemist can create an inert atmosphere
inside.
Reagents can be added via additional
valves, and the reaction mixture sampled,
during the run. The system is controlled by
an advanced microprocessor-based PC
embedded terminal and mounted on a
mobile stainless-steel platform for ease of
operation.
BatchSYNTH Reactor Components
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Reactor cover with PTFE-TFM
top sealing and stainless
steel cooling finger. |
Stainless steel flange complete
with T and P sensors,
inlet/outlet ports for purging
and reagents addition,
rupture disk, and cooling
finger inlet/outlet. |
Pressure vessel complete
with PTFE-TFM liner and
bottom, and fiber-glass
reinforced HTC safety
shield. |
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