1: concentrated sulfuric acid; nitric acid / <17 2: concentrated sulfuric acid View Scheme

sulfuric acid; nitric acid

N-butylamine in benzene 14 h; Ambient temperature; Yield given;

in benzene 14 h; Ambient temperature; Yields of byproduct given;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '20010034', constants.ctx, '0')">bis(2,6-diisopropylphenyl)-3,4,5,6-tetrahydropyrimidin-1-ium chloride</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3602276', constants.ctx, '0')">palladium diacetate</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '4154566', constants.ctx, '0')">sodium carbonate</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1616334', constants.ctx, '0')">anhydrous xylene</a> <br />T=100&deg;C;&nbsp;24&nbsp;h;&nbsp;&nbsp;Sealed tube;&nbsp;<br /> <br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '103233', constants.ctx, '0')">pyridine</a> <br />T=100&deg;C;&nbsp;<br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '4154566', constants.ctx, '0')">sodium carbonate</a> <br /> <br /> &nbsp;