Synthesis of phenoxyaminocyclotriphosphazatrienes
Synthesis of phenoxyaminocyclotriphosphazatrienes
复制标题
苯氧基氨基环三磷杂三烯的合成
DOI:
10.1021/jf00080a034
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发表时间:
1988
期刊:
影响因子:
--
通讯作者:
Ramiro Medina
中科院分区:
文献类型:
--
作者:
G. E. Peters;R. J. Radel;Ramiro Medina
The following phosphazene compounds were synthesized for study as urease inhibitors: 2-phenoxy-2.4. 4.6. 6-pentaaminocycIotriphosphazatriene (1), cis-2, 4-diphenoxy-2, 4, 6, 6-tetraaminocycIo-triphosphazatriene (2), trans-2, 4-diphenoxy-2, 4, 6, 6-tetraaminocyclotriphosphazatriene (3), cis, trans-2.4. 6-triphenoxy-2, 4, 6-triaminocyclotriphosphazatriene (4), ci" s, cis-2, 4, 6-triphenoxy-2, 4, 6-triaminocyclotriphosphazatriene (5). These compounds were characterized by elemental analysis, high-performance liquid chromatography, infrared absorption spectroscopy, and nuclear magnetic resonance spectroscopy.The enzymatic hydrolysis of urea fertilizer in the soil leads tothe loss of nitrogenvia ammonia volatilization; losses of up to 50% of the appliednitrogen occur in flooded soil systems such as paddy rice (Vlek and Craswell, 1981). One approach toreducing ammonia losses is the use of fertilizers that contain compounds thatinhibit soil urease activity and retard urea hydrolysis. Phenoxyaminocyclotriphosphazatrienes are presently being investigated as soil urease inhibitors. In the lastthree decades, significant progress has been made in several phases of phosphazene chemistry. Spe-cifically, much research work has been focused on the chemical reactions of hexachlorocyclotriphosphazatriene (N3P3C16), spectroscopic studies, molecular structure, bonding in the cyclophosphazenes, and the development of cyclic oligomers and open-chain polyphosphazenes. Several reviews have been written on phosphazene chem-istry: Allcock (1972), Keat andShaw (1973), Shaw (1975), Krishnamurthy et al.(1978), Shaw (1978).