Various types of trivalentphosphorus compounds (1; Ph(3-n)P(OR)n) underwent single electron transfer (SET) to unsubstituted (2H) and 5-chloro-substituted tris(1, 10-phenanthroline)iron(III) complexes (2Cl) in the presence of ethanol in acetonitrile, resulting in the reduction of 2 to the corresponding iron(II) complexes. The rate constants (kp) for the overall SET process were determined spectrophotometrically
Insecticidal compositions and methods of combatting insects using
申请人:FMC Corporation
公开号:US03944666A1
公开(公告)日:1976-03-16
Synergistic insecticidal combinations of esters of certain cyclopropanecarboxylic acids, e.g. pyrethrins, allethrin, and related compounds, with mono(alkyl and alkenyl) mono-.omega.-alkynyl aryl- and aralkylphosphonates are described. The preparation and properties of representative members of this new class of synergistic phosphonates are described, and test results of their synergistic combinations with representative cyclopropanecarboxylates are reported.
Organische Phosphorverbindungen XXXVII. Darstellung und Eigenschaften von Bis-(dialkoxyphosphonyl-methyl)-, Bis-(alkoxyphosphinyl-methyl)-und Bis-(oxophosphoranyl-methyl)-phosphinsäureestern sowie der entsprechenden Säuren [1]
作者:Ludwig Maier
DOI:10.1002/hlca.19690520336
日期:——
Bis-chloromethyl-alkyl-and - aryl-phosphine oxides, (CICH2)2P(O)R, which are obtained by reaction of (CICH2)2P(O)Cl with GRIGNARD reagents, undergo a MICHAELIS-ARBUSOV reaction when heated for several hours with trivalent phosphorus esters (phosphites, phosphonites, or phosphinites) at 170–180°C. The reaction affords bis-(dialkyloxyphosphonyl-methyl)-, bis (alkyloxyphosphinyl-methyl)-, and bis-(ox
通过(CICH 2)2 P(O)Cl与GRIGNARD试剂反应获得的双-氯甲基-烷基和芳基膦氧化物(CICH 2)2 P(O)R进行MICHAELIS-ARBUSOV反应与三价磷酯(亚磷酸酯,亚膦酸酯或次膦酸酯)在170-180°C下加热几个小时。反应得到双-(二烷氧基膦酰基-甲基)-,双(烷氧基膦酰基-甲基)-和双-(氧代膦酰基-甲基)-,-烷基-或-芳基-膦氧化物,R(O)P [CH 2 P( O)R'R“] 2 R = CH 3,C 2 H 5,n -C 8 H 17,n -C 12 H 25,C 6 H 5 ; R′和R″ = C 2 H 5 O,C 4 H 9 O,C 6 H 5,CH 3,产率高。
Organische Phosphorverbindungen XXXVI. Darstellung und Eigenschaften von Bis-(dialkoxyphosphonyl-methyl)-, Bis-(alkoxyphosphinyl-methyl)-und Bis-(oxophosphoranyl-methyl)-phosphinsäureestern sowie der entsprechenden Säuren [1]
作者:Ludwig Maier
DOI:10.1002/hlca.19690520335
日期:——
High yields of bis-(dialkoxyphosphonyl-methyl)- phosphinic esters, (RO)2 (O)-PCH2P(O)OR, bis-(aloxyphosphinyl-methyl)-phosphinic esters, [R(RO)(O)PCH2]2P(O)OR, are obtained by heating bis-chloromethyl-phosphinic esters, (CICH2)2P(O)OR, with alkylphoshites, phosphonites and phosphinites, repectively, at 170 to 180°C for several hours. Hydrolysis of these esters in achieved by refluxing with conc. HCl
Reactions of spiro[2.3]hexane-5-carbonyl chloride with phosphorus(III) acids esters
作者:Yu. N. Mitrasov、D. A. Sosnov、O. V. Kondrat’yeva
DOI:10.1134/s1070363213060303
日期:2013.6
the reaction of bicyclo[4.1.0]heptane-7-carbonyl chloride with medium esters of phosphorous and arylphosphonous acids occurs with the retention of the small carbocycle [1]. In continuation of this work it is interesting to study the behavior of carbonyl compounds of spirohexane series in the Arbuzov reaction [2]. Due to the high energy strain of these spiranes one could expect unusual reaction course