No reason not to use LAH in anhydrous THF (dry using Na foil or wire, added in small portions at a time, after first using a suitable conventional dessicant, I would reccomend either using N2 or Ar to do that part, although not needed for the reduction itself apparently assuming the LAH is only handled in air most quickly due to loss of yield, and everything kept pretty dry. And of course to exclude O2, as THF is prone to forming peroxides and quite possibly hydroperoxides, which are extremely sensitive, pretty powerful friction and/or shock sensitive explosives which can go off especially if they form as solid deposits on screw threaded tubs. I for one would not fancy being anywhere near an explosion right in/over a container full of diethyl ether, THF, dioxane etc. Diisopropyl ether is apparently particularly quick to form explosive peroxides on oxidation.
Shulgin uses LAH extensively in PIHKAL to reduce nitroalkenes to the the 1-phenyl-2-aminopropane (for the amphetamine) or using EtNO2 rather than MeNO2 to yield the nitroalkene appropriate in either case for the benzaldehyde substrate. Plain benzaldehyde and EtNO2 after reduction of the nitroalkene would of course, yield amphetamine).
IIRC I read tell somewhere that alpha-methylbenzylamines in some cases are fairly potent MAO-a inhibitors, which would be most dangerous with a serotonin releaser or adrenergic drug, causing serotonin syndrome, a hypertensive crisis, or both, 5HT syndrome, is hideously unpleasant and can be fatal. someone very dear to me had a sudden, unpredictable rxn
to sumatriptan and an SSRI which she had taken (SSRI) longterm and the triptan for migraines as needed, she went through hell, collapsed more or less immobile, in absolute misery, she thought she was going to die. By the time she was able to seek help, she had improved in state, and didn't bother, being so fiercely independent, and hating dependence on any medication whatsoever.
This is advice from somebody more experienced than I, about LAH, I am soon to perform a LAH reduction