Rhodium (Chief Bee)
10-08-02 06:16
No 365809
      1 atm Catalytic Hydrogenation NaBH4-Ni Acetate  Bookmark   

../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
(Stoni's sexual toy)
10-08-02 15:35
No 366021
      Haven't looked at it (too tired, lazy and ...  Bookmark   

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
(Hive Bee)
10-08-02 15:54
No 366028
      Ive made and tried both P1- and P2-NiB/NaBH4 and ...  Bookmark   

Ive 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
(Chief Bee)
10-08-02 17:38
No 366059
      Can you fuel the above hydrogenation by in situ ...  Bookmark   

Can you fuel the above hydrogenation by in situ generation of hydrogen from NaBH4, or do you have to generate it externally?
 
 
 
 
    Barium
(Hive Bee)
10-08-02 18:43
No 366081
      Both the P1- and P2-NiB was generated externally ...  Bookmark   

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

Catalytic hydrogenation freak