Novel N-aliphatic and N,N-aliphatic phosphoric triamide urease inhibitors and urease inhibited urea based fertilizer compositions
申请人:ALLIED CORPORATION
公开号:EP0119487A1
公开(公告)日:1984-09-26
The invention relates to novel urease inhibited fertilizer. compositions containing urea and a urease inhibiting amount of one or more phosphoric triamide compounds, and methods and composition for inhibiting the urease catalyzed hydrolysis of urea through use of such compounds.
Thionation of phosphoramidodichloridates and phosphoramidate diesters using phosphorus pentasulfide and hexamethyldisiloxane under microwave irradiation. Part 1
作者:Manisha Nivsarkar、Arvind K. Gupta、Mahabir P. Kaushik
DOI:10.1016/j.tetlet.2004.07.099
日期:2004.9
A new, mild, efficient, and solvent-free microwave promoted synthesis of thiophosphoramidodichloridates and thiophosphoramidate diesters is described. The thionation reaction was accelerated with microwave irradiation using the combination of P4S10 and HMDO. The conversion of P=O to P=S by this method gave the desired product in higher yields and shorter reaction times as compared to conventional methods. (C) 2004 Elsevier Ltd. All rights reserved.