20510-29-6

Upstream product

• 125331-01-3 1-iodo-4-(diethylphosphono)butane 
• 23665-09-0 phenylzinc iodide 
• 122-78-1 phenylacetaldehyde 
• 29443-41-2 β-phenylethylidenehydrazine 
• 682-30-4 Diethyl vinylphosphonate 
• 858-11-7 bis-(5-phenyl-valeryl)-peroxide 
• 762-04-9 phosphonic acid diethyl ester 
• 2270-20-4 5-Phenylpentanoic acid 

Downstream Products

• 92976-27-7 chloro(4-phenylbutyl)phosphinic acid,ethyl ester 
• 46348-61-2 4-phenyl-butyl phosphonic acid 

Relevant academic research and scientific papers

Carbonyls as Latent Alkyl Carbanions for Conjugate Additions

Conjugate addition of carbon nucleophiles to electron-deficient olefins is one of the most powerful methods for forming carbon–carbon bonds. Despite great achievements in controlling the selectivity, variation of the carbon nucleophiles remains largely underexplored, with this approach relying mostly on organometallic reagents. Herein, we report that naturally abundant carbonyls can act as latent carbon nucleophiles for conjugate additions through a ruthenium-catalyzed process, with water and nitrogen as innocuous byproducts. The key to our success is homogeneous ruthenium(II) catalysis, combined with phosphines as spectator ligands and hydrazine as the reducing agent. This chemistry allows the incorporation of highly functionalized alkyl fragments into a vast array of electron-deficient olefins under mild reaction conditions in a reaction complementary to the classical organometallic-reagent-based conjugate additions mediated or catalyzed by “soft” transition metals.

Preparation method of alkyl phosphorylated substances

The invention discloses a preparation method of alkyl phosphorylated substances. According to the invention, alkyl carboxylic acid is used as a starting material, and raw materials are easy to obtain and are various in types. Products prepared by the method disclosed by the invention are various in types and wide in application; and a part of the products can be prepared into important phosphorus ligands and drug key intermediates through simple reduction. In addition, use of high-toxicity phosphine reagents is avoided in the method, the reaction conditions are mild, operation is simple, the yield of the target product is high, pollution is small, and the reaction operation and post-treatment processes are simple, so that the method is suitable for industrial production.

Method for preparation of alkyl phosphonyl compound from peroxide

The invention discloses a method for preparation of an alkyl phosphonyl compound from peroxide. The invention adopts an acyl peroxide as the starting material, and the raw material is easily availableand has a great variety. The product obtained by the method provided by the invention has a great variety and wide uses. Some of the products can be reduced simply into important phosphorus ligands and key pharmaceutical intermediates. In addition, the method avoids the use of high toxicity phosphine reagent, has the characteristics of mild reaction conditions, simple operation, high target product yield, low pollution, simple reaction operation and post-treatment process, and is suitable for industrial production.

Rh-catalyzed Negishi alkyl-aryl cross-coupling leading to α- or β-phosphoryl-substituted alkylarenes

The catalytic cross-coupling between ArZnX and ICH2(CH 2)nP(O)(OEt)2 (n = 0-3) has been investigated to determine the utility of the Rh catalyst during the alkyl-aryl cross-coupling and to develop a new syntheti