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Phosphorus reagents


A class of compounds that contain P-C and P-O-C bonds are often classified as organophosphorus compounds. Phosphorus reagents are widely used commercially. Phosphorus can adopt a variety of oxidation states, and it is general to classify organophosphorus compounds based on their being derivatives of phosphorus(V) vs phosphorus (III), which are the predominant classes of compounds. Treatment of phosphorus trihalides with alcohols and phenols gives phosphites. Similar reactions occur for phosphorus oxychloride affording phosphates. Phosphonates are esters of phosphonic acid formed mainly by The Michaelis–Arbuzov reaction (trivalent phosphorus ester with an alkyl halide to form a pentavalent phosphorus species). Phosphonates are suitable reagents for Horner–Wadsworth–Emmons reaction or Seyferth-Gilbert homologation. Phosphorus ylides are unsaturated phosphoranes, widely used as Wittig reagents. Phosphines are nucleophilic catalysts in organic synthesis and reducing agents, as illustrated in the Staudinger reduction and in the Mitsunobu reaction for converting alcohols into esters. Organophosphorus compounds have many applications, including those in plasticisers, flame retardants, pesticides, extraction agents, nerve agents and water treatment.

Product nameStructureCAS#G-code
Cyclopropyltriphenylphosphonium bromideStructure of Cyclopropyltriphenylphosphonium bromide[14114-05-7]GEO-00894
Dibenzyl chlorophosphateStructure of Dibenzyl chlorophosphate[538-37-4]GEO-02716
Dibenzyl phosphateStructure of Dibenzyl phosphate[1623-08-1]GEO-00941
N-Di-tert-butoxyphosphanyl-N-isopropyl-propan-2-amineStructure of N-Di-tert-butoxyphosphanyl-N-isopropyl-propan-2-amine[137348-86-8]GEO-03953
Di-tert-butylchlorophosphineStructure of Di-tert-butylchlorophosphine[13716-10-4]GEO-01258
DichloroisopropylphosphineStructure of Dichloroisopropylphosphine[25235-15-8]GEO-01021
DichloromethylphosphineStructure of Dichloromethylphosphine[676-83-5]GEO-00992
NewN-dichlorophosphoryl-N-methylmethanamineStructure of N-dichlorophosphoryl-N-methylmethanamine[677-43-0]GEO-04937
Diethyl allylphosphonateStructure of Diethyl allylphosphonate[1067-87-4]GEO-02809
Diethyl(aminomethyl)phosphonate oxalateStructure of Diethyl(aminomethyl)phosphonate oxalate[117196-73-3]GEO-02648
Diethyl chlorophosphateStructure of Diethyl chlorophosphate[814-49-3]GEO-02876
Diethyl chlorophosphiteStructure of Diethyl chlorophosphite[589-57-1]GEO-03099
Diethyl phenylphosphonateStructure of Diethyl phenylphosphonate[1754-49-0]GEO-01048
Diethyl phosphateStructure of Diethyl phosphate[598-02-7]GEO-01049
Diisopropyl fluorophosphateStructure of Diisopropyl fluorophosphate[55-91-4]GEO-01118
DiisopropylphosphateStructure of Diisopropylphosphate[1611-31-0]GEO-01126
Dimethyl chlorophosphateStructure of Dimethyl chlorophosphate[813-77-4]GEO-02811
Dimethylphosphine oxideStructure of Dimethylphosphine oxide[7211-39-4]GEO-03211
Dipentyl hydrogen phosphateStructure of Dipentyl hydrogen phosphate[3138-42-9]GEO-04525
Diphenylphosphonoacetic acid ethyl esterStructure of Diphenylphosphonoacetic acid ethyl ester[16139-79-0]GEO-01243