1: With sodium azide in water; dimethyl sulfoxide T=25°C; 48 h; 2: With palladium on activated charcoal; hydrogen in methanol T=50°C;

Stage #1: <a href="#" onclick="return RXDsubstances(event, this, '143237', constants.ctx, '0')">(10H)-phenothiazine</a> <b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '4122952', constants.ctx, '0')">sodium hydride</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '605365', constants.ctx, '0')">N,N-dimethyl-formamide</a> <br />T=0 - 25&deg;C;&nbsp;<br />Stage #2: <a href="#" onclick="return RXDsubstances(event, this, '1071199', constants.ctx, '0')">1,4-dibromo-butane</a> &nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '605365', constants.ctx, '0')">N,N-dimethyl-formamide</a> <br />T=25&deg;C;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1.1: sulfur; iodine / 2 h / 170 &deg;C<br />2.1: sodium hydride / N,N-dimethyl-formamide / 0 - 25 &deg;C<br />2.2: 25 &deg;C<br /> <br /> &nbsp;