21014-26-6

Upstream product

• 22822-85-1 ethyl sodiodiethylphosphonoacetate 
• 1489-69-6 Cyclopropanecarboxaldehyde 
• 1474-78-8 triethyl phosphonoformate 
• 2516-33-8 Cyclopropylmethanol 
• 17577-28-5 (ethoxycarbonylmethyl)triphenylphosphonium chloride 
• 1099-45-2 ethyl (triphenylphosphoranylidene)acetate 
• 17615-01-9 1-(triphenyl-λ⁵-phosphanylidene)pentan-2-one 
• 867-13-0 diethoxyphosphoryl-acetic acid ethyl ester 
• 70398-41-3 diethyl 2-(tetrahydrofuran-2-yl)malonate 

Downstream Products

• 5618-03-1 3-cyclopropanepropionic acid 

Relevant academic research and scientific papers

Synthesis of α,β-unsaturated esters from dialkoxyphosphoryl esters and aldehydes in the ionic liquid [bmim][PF6]

α,β-Unsaturated esters were synthesised by LiOH·H2O-promoted reactions of triethyl phosphonoacetate 1 and triethyl 3-methyl-4-phosphono-2-butenoate 2 with aldehydes in 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF6]).

Synthesis of All-Carbon Quaternary Centers by Palladium-Catalyzed Olefin Dicarbofunctionalization

The redox-neutral dicarbofunctionalization of tri- and tetrasubstituted olefins to form a variety of (hetero)cyclic compounds under photoinduced palladium catalysis is described. This cascade reaction process was used to couple styrenes or acryl amides with a broad range of highly decorated olefins tethered to aryl or alkyl bromides (>50 examples). This procedure enables one or two contiguous all-carbon quaternary centers to be formed in a single step. The products could be readily diversified and applied in the synthesis of a bioactive oxindole analogue.

One-Pot Synthesis of α,β-Unsaturated Esters, Ketones, and Nitriles from Alcohols and Phosphonium Salts

A general method for the synthesis of α,β-unsaturated esters, ketones, and nitriles is successfully achieved by a one-pot copper-catalyzed oxidation with O 2 in air as oxidant. The solvent mixture of acetonitrile and formamide (1:1) is optimized to ensure the oxidation of alcohols, deprotonation of phosphonium salt, and Wittig reaction occur efficiently in one pot. A broad range of substrates has been explored for this process, including three electron-withdrawing group (CO 2 Et, COPh, CN) functionalized phosphonium salts. They reacted not only with benzylic and heteroaromatic alcohols, but also with aliphatic alcohols, forming the corresponding α,β-unsaturated esters, ketones, and nitriles in moderate to excellent yields.

Facile synthesis of α, β-unsaturated esters through a one-pot copper-catalyzed aerobic oxidation-Wittig reaction

An efficient one-pot synthesis of α, β-unsaturated esters through the aerobic oxidation – Wittig tandem reaction of alcohols and phosphorous ylide is developed. This new method operates under mild reaction conditions, and uses CuI/TEMPO (TEMPO = 2,2,6,6-tetramethylpiperidine-N-oxyl) as co-catalyst and air (O2) as the oxidant. It tolerates a wide range of functionalized benzylic alcohol and aliphatic alcohols.

ANTIVIRAL COMPOUNDS

The present invention relates to novel compounds of general formula (I) wherein the groups X, and R1 to R4 have the meanings given in the description and claims, process for preparing these compounds and their use as for treating, preventing or ameliorating viral infections and their use for treating, preventing or ameliorating diseases which are associated with PLA2G16.

CYCLOHEXYL GPR40 AGONISTS FOR THE TREATMENT OF TYPE II DIABETES

Disclosed are compounds, compositions and methods for treating of disorders that are affected by the modulation of the GPR40 receptor. Such compounds are represented by Formula (I) as follows: (Formula (I)) wherein R1, R2, R3, A, W, L, Ra, and G are defined herein: and by Formula (II) as follows: (Formula (II)) wherein R1B, WB, LB, and GB are defined herein.

HUMAN PLASMA KALLIKREIN INHIBITORS

Disclosed are compounds of formula I, and pharmaceutically acceptable salts thereof. The compounds are inhibitors of plasma kallikrein. Also provided are pharmaceutical compositions comprising at least one compound of the invention, and methods involving use of the compounds and compositions of the invention in the treatment and prevention of diseases and conditions characterized by unwanted plasma kallikrein activity.

SERINE/THREONINE KINASE INHIBITORS

Compounds of Formula I or a stereoisomer, tautomer or pharmaceutically acceptable salt thereof are provided, which are useful for the treatment of diseases. Methods of using compounds of Formula I or a stereoisomer, tautomer or pharmaceutically acceptable salt thereof, for in vitro, in situ, and in vivo diagnosis, prevention or treatment of such diseases, or associated pathological conditions are disclosed.

HUMAN PLASMA KALLIKREIN INHIBITORS

Disclosed are compounds of formula (I), as described herein, and pharmaceutically acceptable salts thereof. The compounds are inhibitors of plasma kallikrein. Also provided are pharmaceutical compositions comprising at least one compound of the invention, and methods involving use of the compounds and compositions of the invention in the treatment and prevention of diseases and conditions characterized by unwanted plasma kallikrein activity.

OMS-2 for aerobic, catalytic, one-pot alcohol oxidation-wittig reactions: Efficient access to α,β-unsaturated esters

Manganese oxide octahedral molecular sieve (OMS) materials with well-defined pores have been extensively studied over two decades due to their intriguing chemical and physical properties. OMS-2, the synthetic cryptomelane form of manganese oxide, was synthesized by a modified reflux method and was found to be highly active for obtaining α,β-unsaturated esters (up to 95 % yield and with high diastereoselectivities) from a variety of benzyl, heteroaryl, allyl and alkyl alcohols via one-pot alcohol oxidation-Wittig reaction. The transformation utilizes air as the stoichiometric oxidant, and the inexpensive catalyst can be recovered and reused. Filter and use again! Porous manganese oxide molecular sieve based catalysts were found to efficiently promote the oxidation of a variety of alcohols to the aldehydes, which reacted insitu with stabilized Wittig reagent, providing almost exclusively E-α,β-unsaturated esters in good to excellent yields. The heterogeneous catalyst used was made from inexpensive starting materials, and the recovered catalyst was found to be reusable with a modest loss in activity.