99234-82-9

Upstream product

• 5335-84-2 bis(4-bromophenyl)disulfide 
• 4559-70-0 Diphenylphosphine oxide 
• 98-58-8 4-bromobenzenesulfonyl chloride 
• 1079-66-9 chloro-diphenylphosphine 
• 106-53-6 para-bromobenzenethiol 
• 5015-75-8 sodium p-bromobenzenesulphonate 
• 1195-33-1 4-bromo-benzenesulfinic acid 
• 719-80-2 Ethyl diphenylphosphinite 
• 2297-64-5 p-bromophenylsulfonyl hydrazide 
• 108-86-1 bromobenzene 
• 829-85-6 diphenylphosphane 

Relevant academic research and scientific papers

Electrochemical Enabled Cascade Phosphorylation of N?H/O?H/S?H Bonds with P?H Compounds: An Efficient Access to P(O)-X Bonds

An electrochemical three component cascade phosphorylation reaction of various heteroatoms-containing nucleophiles including carbazoles, indoles, phenols, alcohols, and thiols with Ph2PH has been established. Electricity is used as the “traceless” oxidant and water and air are utilized as the “green” oxygen source. All kinds of structurally diverse organophosphorus compounds with P(O)-N/P(O)-O/P(O)-S bonds are assembled in moderate to excellent yields (three categories of phosphorylation products, 50 examples, up to 97 % yield). A tentative free radical course is put forward to rationalize the reaction procedure.

Tf2O/DMSO-Promoted P-O and P-S Bond Formation: A Scalable Synthesis of Multifarious Organophosphinates and Thiophosphates

A Tf2O/DMSO-based system for the dehydrogenative coupling of a wide range of alcohols, phenols, thiols, and thiophenols with diverse phosphorus reagents has been developed. This metal- and strong-oxidant-free strategy provides a facile approach to a great variety of organophosphinates and thiophosphates. The simple reaction system, good functional-group tolerance, and broad substrate scope enable the application of this method to the modification of natural products and the direct synthesis of bioactive molecules and flame retardants.

An Alternative Metal-Free Aerobic Oxidative Cross-Dehydrogenative Coupling of Sulfonyl Hydrazides with Secondary Phosphine Oxides

An alternative metal-free, efficient and practical approach for the preparation of phosphinothioates is established via the aerobic oxidative cross-dehydrogenative coupling (CDC) of sulfonyl hydrazides with secondary phosphine oxides catalyzed by tetrabutylammonium iodide (TBAI) in the presence of atmospheric oxygen. The strategy provides an array of diverse phosphinothioates in good to excellent yields. Furthermore, two representative bioactive molecules are synthesized on up to gram scale by utilizing this method.

Synthetic method of diphenyl thiophosphate compound

The invention discloses a synthesis method of a diphenyl thiophosphate compound. The preparation method comprises the following steps: by taking thiophenol as a reaction substrate and trichloroisocyanuric acid (TCCA) as an accelerant, reacting the reaction substrate and the accelerant in an organic solvent under the conditions of normal temperature and normal pressure for 10 minutes, then adding alkoxy diphenyl phosphine, continuously reacting for 10 minutes, and after the reaction is finished, carrying out separation treatment to obtain the diphenyl thiophosphate compound. According to the synthesis method disclosed by the invention, the reaction is carried out at normal temperature and normal pressure without special requirements; the reaction time is short; and high product yield is achieved.

Preparation method of compound containing P-O bond or P-S bond

The invention discloses a preparation method of a compound containing a P-O bond or a P-S bond. The method comprises the following steps: a compound containing hydroxyl or sulfydryl and a phosphorus reagent are taken as initial raw materials; then, the initial raw materials are put into an inert gas atmosphere; and under the action of trifluoromethanesulfonic anhydride (Tf2O) and dimethyl sulfoxide (DMSO), the compound containing hydroxyl or sulfydryl, the phosphorus reagent, the trifluoromethanesulfonic anhydride and the dimethyl sulfoxide in a molar ratio of (1-5): (1-2.5): (2-3): 2 react inan organic solvent at the reaction temperature of 25-100 DEG C for 6-20 hours to obtain the compound with the structural general formula (I). The reagents used in the method are low in toxicity and environmentally friendly, and use of precious metal catalysts high in price and toxicity is avoided. The reagents trifluoromethanesulfonic anhydride (Tf2O) and dimethyl sulfoxide (DMSO) used in the method are low in toxicity and very low in cost, so that the method is green, environment-friendly, high in economy and suitable for large-scale production.

Green synthetic method of thiohypophosphate

The invention relates to a green synthetic method of thiohypophosphate as shown in the formula I as show in the specification, wherein R is phenyl, not more than three methyl or three methoxyl or three halogen substituted phenyl, straight-chain or branch-chain alkyl with no more than six carbon atoms, straight-chain or branch-chain alkenyl with no more then six carbon atoms, straight-chain or branch-chain alkynyl with no more than six carbon atoms and a 3 to 8-member aliphatic ring group; R is phenyl, not more than three methyl or three methoxyl or three halogen substituted phenyl, pyridyl, benzyl, naphthyl and a 3 to 8-member aliphatic ring group; according to the synthetic method, thiohypophosphate is a product directly obtained by enabling N-R thiophthalimide to react with di-R based phosphine oxide with water as a solvent.

A scalable electrochemical dehydrogenative cross-coupling of P(O)H compounds with RSH/ROH

A practical, scalable electrochemical dehydrogenative cross-coupling of P(O)H compounds with thiols, phenols and alcohols in both an undivided cell and a continuous-flow setup is disclosed. Its broad substrate scope (>50 examples), good functional-group tolerance and scalability (>10 g) show potential for practical synthesis. A preliminary mechanistic study suggests that the phosphorus radicals are involved in the catalytic cycle.

Highly atom-economical, catalyst-free, and solvent-free phosphorylation of chalcogenides

Silica gel promoted, catalyst-free and solvent-free S-P, Se-P and Te-P bond formations are described. A variety of disulfides coupled with diarylphosphine oxides provide the corresponding phosphinothioates in excellent yields. For the first time, diselenides and ditellurides reacted with dialkyl phosphites under catalyst-free conditions to provide the corresponding phosphoroselenoates and phosphorotelluroates, respectively, in good to excellent yields.

Acid/Phosphide-Induced Radical Route to Alkyl and Alkenyl Sulfides and Phosphonothioates from Sodium Arylsulfinates in Water

A newly developed aqueous system with acid and phosphide was introduced in which odorless and stable sodium arylsulfinates can in situ generate arylsulfenyl radicals. These radicals have high reactivity to react with alkynes, alkenes, and H-phosphine oxides for the synthesis of alkyl and alkenyl sulfides and phosphonothioates. The control experiments and quantum calculations are also performed to gain insights into the generation mechanism of arylsulfenyl radicals. Notably, the chemistry is free of thiol odors, organic solvents, and metals.

Synthesis of P(O)-S organophosphorus compounds by dehydrogenative coupling reaction of P(O)H compounds with aryl thiols in the presence of base and air

The synthesis method of P(O)-S organophosphorus compounds by dehydrogenative coupling reaction of P(O)H compounds and aryl thiols was developed. The reaction was carried in the presence of a base and air, and exhibited good characters such as metal-free,