tris-(2-chloro-ethyl)-amine; di-isopropyl azodicarboxylate; water; triphenylphosphine 1.) THF, benzene, from 28 deg C to 30 deg C, 1 h, then 50 deg C, 3 h; 2.) THF, benzene, 50 deg C, 3 h; Yield given. Multistep reaction;

sodium tetrahydroborate; boron trifluoride diethyl etherate; hydroxylamine-o-sulphonic acid 1.) DME, ether, 2.) DME, ether, reflux, 4 h; Yield given. Multistep reaction;

(i) NaN3, (ii) (heating), (iii) aq. HCl; Multistep reaction;

sodium hydroxide in chloroform T=25°C; 12 h;