I'm officially calling it: Photoredox catalysis = the new "it reaction" for organic chemistry.
Like many before it - iron catalysis, the gold rush, anything palladium, organocatalysis - photoredox catalysis is now appearing in my RSS feed on a near-hourly basis. We're in the early days of an exciting field; I've noticed more methodology papers and mechanistic studies lately. Assuming you start with a suitable aryl halide, diazonium, or carboxylic acid, the synthetic toolkit of single-electron catalysis seems virtually limitless.
Which begs the question . . .where are all the photoredox total syntheses?
|Three examples of recent total syntheses that capitalize|
on photoredox catalysis (bonds in red)
How about "light-mediated total synthesis?"
One more try: "photoredox natural products?"
Most of these hits actually lead to conference abstracts, not individual manuscripts. Props to the Stephenson group (Michigan), who leads the charge with syntheses of aspidosperma alkaloids and gliocladin C. Based on SciFinder results, I'd include the MacMillan synthesis of Lyrica, and Lei's isoquinoline syntheses from JOC.
Readers, what am I missing? A pivotal review or book? A group whose research is at the forefront of solar-powered natural product production? Perhaps a major non-English journal article? Any examples where a venerable old lion of total synthesis utilized a photoredox reaction alongside their Diels-Alders and aldol reactions?
For such a large-upside field, it sure seems quiet out there.
Update: Molecules made with photoredox catalysis, as suggested by my beloved commenters:
Overman, (-)-aplyviolene, Ru(bpy)3
MacMillan, fenofibrate (OK, not a np), Ni(II), Ir(III)
MacMillan, (-)-burshernin, Ru(bpy)3
Nicewicz, methylenolactocin and Protolichesterinic Acid, acridinium
Nicewicz, magnosalin + pellucidin A
Yoon, heitziamide A, Ru(bpz)3
Yoon, epiraikovenal, Ir(III)
Chen + Baran, sceptrin, Ir(ppz)3
Chen, nakamuric acid, Ir(ppy)3
Lawrence / Sherburn, endiandric acid A, kingianins A,D,F, kingianic acid E, Ru(bpy)3
Carreira, (+)-Daphmanidin E, Co-diimine (method here)