| abstract |
Diamino-phenetidine cpds. of formula (I) are prepd. from nitro-cpds. of formula (III) by catalytic redn. with hydrazine or hydrazine-hydrate to amino-derivs. of formula (II). An active- carbon substrate catalyst is used contg. Pd/Pt or in this case Se, and/or Te, and/or Cu, and/or Bi, and/or Ge. Conversely, a Raney Nickel catalyst is used. Cpds. (II) are acetylated in a solvent medium to yield cpds. (I). |