6329-49-3

Upstream product

• 874-42-0 2,4-dichlorobenzaldeyhde 
• 868-85-9 Dimethyl phosphite 
• 36198-87-5 dimethyl trimethylsilyl phosphite 

Downstream Products

• 72651-86-6 (+/-)-2,4-Dichlor-α-hydroxy-benzylphosphonsaeure-monomethylester 
• 694489-31-1 (2,4-dichloro-phenoxy)-acetic acid (2,4-dichloro-phenyl)-(dimethoxy-phosphoryl)-methyl ester 
• 72651-86-6 [(2,4-Dichloro-phenyl)-hydroxy-methyl]-phosphonic acid monomethyl ester 
• 1208065-67-1 dimethyl [(2,4-dichlorophenyl)(6-oxo-6λ5-dibenzo[d,f][1,3,2]dioxaphosphepin-6-yl)ethyl]phosphonate 
• 1207757-81-0 O,O-dimethyl-2,6-pyridinyldi(formyloxy-2,4-dichlorobenzylphosphonate) 
• 1352612-26-0 (2,4-dichlorophenyl)(dimethoxyphosphoryl)methyl cinnamate 

Relevant academic research and scientific papers

Synthesis and insecticidal activities of O,O-dialkyl-2-[3-bromo-1-(3-chloropyridin-2-yl)-1H-pyrazole-5-carbonyloxy] (aryl) methylphosphonates

A series of novel O,O-Dialkyl-2-[3-bromo-1-(3-chloropyridin-2-yl)-1H-pyrazole-5-carbonyloxy](aryl) methy-lphosphonates I-1–14 were designed and synthesized. The structures of all the title compounds were confirmed by 1H-NMR, 13C-NMR, 31P-NMR, IR and elemental analysis. Their insecticidal activities against Mythimna separata and Plutella xylostella were evaluated. The results of bioassays indicated that the title compounds exhibited 20–80% larvicidal activity against Mythimna separata at 1000?mg/L.

Synthesis and herbicidal activity of O,O-dimethyl-(3-phenacryloyloxy) alkyl phosphonates

In an attempt to discover novel compounds with high biological activity and low toxicity, a series of new O,O-dimethyl-(3-phenacryloyloxy) alkyl phosphonates 4a-m have been designed and synthesized by the reaction of 3-phenacryloyl chloride with α-hydroxyalkyl phosphonate. All new compounds were characterized by elemental analysis, IR, and 1H NMR spectroscopy as well as by mass spectrometry. The results of preliminary bioassay indicate that some of the target compounds have excellent inhibitory activities on Triticum aestivum (wheat) and Brassica napus L. (rape). Copyright Taylor and Francis Group, LLC.

N-heterocyclic carbene catalyzed hydrophosphonylation of aldehydes

N-Heterocyclic carbene catalyzed Pudovik-type reaction of dimethyl trimethylsilyl phosphite and aldehydes for the construction of carbon-phosphorus bonds have been developed, providing -hydroxyphosphonates in moderate to excellent yield. Georg Thieme Verl

Synthesis and antimicrobial activity of bisphosphonates

Dimethyl [(substitutedphenyl)(6-oxo6λ5dibenzo[d,f][1,3,2] dioxaphophepin-6-yl)methyl]phosphonates (5a-j) were synthesised through a three step process involving preparation of dimethyl hydroxy(substitutedphenyl) methylphosphonates (4a-j) and their reactio

Synthesis and biological activity of O,O-Dimethyl-2,6-Pyridinyl diformyloxy alkyl phosphonates

In an attempt to discover novel compounds with high activity and low toxicity, a series of new O,O-dimethyl-2,6-pyridinyl diformyloxy alkyl phosphonates 4a-4p has been designed and synthesized by the reaction of 2,6-pyridinyl diformyloxy chloride with α-hydroxyalkyl phosphonate. The structures of all new compounds were characterized by elementary analysis, IR, 1H NMR, and MS spectroscopies. The results of a preliminary bioassay indicate that some of the target compounds have obviously promotive action for plant growth against the stalk of barnyard grass.

The synthesis and herbicidal evaluation of fluorine-containing phenoxyacetoxyalkylphosphonate derivatives

To investigate the influence of a fluorine moiety on the biological activity of phenoxyacetoxyalkylphosphonates, a series of fluorine-containing phenoxyacetoxyalkylphosphonates were synthesized and screened for herbicidal activity in a greenhouse. The majority of the title compounds showed better preemergence activity than postemergence activity against the test plants, especially on monocotyledon. Compound 5l exhibited notable activity. Results showed that by introducing a fluorine moiety to the parent structure of phenoxyacetoxyalkylphosphonates, a series of new compounds with satisfactory herbicidal activity could be synthesized. A reasonable combination of a fluorine moiety and other substituents on the benzene ring had a great influence on the herbicidal activity. Copyright Taylor & Francis Group, LLC.

LA FORMATION DE SELS AUGMENTE-T-ELLE LA FREQUENCE DES DEDOUBLEMENTS SPONTANES

The resolution by entrainment which allows the pure enantiomers to be obtained by direct crystallization of the racemate is possible only when the racemate is a conglomerate (eutectic mixture).Spontaneous resolutions exist to an extent less than 10percent