1: 1) 2-(tert-butylimino)-2-(diethylamino)-1,3-dimethylperhydro-1,3,2-diazaphosphorine on polystyrene, 2) Py, DMAP / 1) CH3CN, H2O, 100 deg C, 4.5 h, 2) 20 deg C, 2 d 2: 1) BH3*Me2S, 2) MeOH, K2CO3 / 1) THF, 20 deg C, 15 h, 2) H2O, 60 deg C, 2 h 3: 41 mg / H2 / Pd/C / tetrahydrofuran; H2O / 24 h / 20 °C / 760 Torr View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1209273', constants.ctx, '0')">thionyl chloride</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '19252788', constants.ctx, '0')">2-(tert-butylimino)-2-(diethylamino)-1,3-dimethylperhydro-1,3,2-diazaphosphorine on polystyrene</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3587193', constants.ctx, '0')">bromine</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3595636', constants.ctx, '0')">silver(I) acetate</a> <br />&nbsp;Yield given. Multistep reaction;&nbsp;<br /> &nbsp;