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1 atm Catalytic Hydrogenation NaBH4-Ni Acetate

Started by Rhodium, October 08, 2002, 06:16:00 AM

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Rhodium

https://www.thevespiary.org/rhodium/Rhodium/pdf/borohydride.p2.nickel.pdf



Nickel(II)Acetate tetrahydrate and sodium borohydride easily reduces a variety of alkenes alkynes and dienes selectively.

Perhaps it can reduce nitroalkenes too?

Osmium

Haven't looked at it (too tired, lazy and confused right now) but me thinks to reduce nitroalkenes you generally need a strong, fast and nonselective catalyst+reducing agent system under more drastic condidions, not a selective one.

I'm not fat just horizontally disproportionate.

Barium

I´ve made and tried both P1- and P2-NiB/NaBH4 and got quite good results from reducing both ketoximes and nitroalkanes, but crap when tried with nitroalkenes.

Catalytic hydrogenation freak

Rhodium

Can you fuel the above hydrogenation by in situ generation of hydrogen from NaBH4, or do you have to generate it externally?

Barium

Both the P1- and P2-NiB were generated externally and the H2(g) internally.

Catalytic hydrogenation freak