CAS: 824-72-6; Phenylphosphonic Dichloride

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CAS号644-97-3 苯基二氯膦 | CAS号4895-65-2 Tetrachloro(phe... | CAS号75-44-5 光气 | CAS号1571-33-1 苯磷酸 | CAS号79-37-8 草酰氯 | CAS号2240-41-7 苯基膦酸二甲酯 | CAS号1754-49-0 苯基膦酸二乙酯 | CAS号71-43-2 苯 | CAS号55045-25-5 phenyltrichloro... | CAS号109-92-2 乙烯基乙醚 | CAS号10557-66-1 dibutylphosphor... | CAS号57072-35-2 4-硝基苯基氢苯膦 | CAS号3764-01-0 2,4,6-三氯嘧啶 | CAS号39621-00-6 2,6-二氯-4-甲基吡啶 | CAS号3497-00-5 苯基硫代膦酰二氯 | CAS号4722-94-5 4-氯吡啶-2,6-二羧酸 | CAS号35982-99-1 2-氯-5-(4-氯苯基)烟腈 | CAS号143000-15-1 8-methyl-9-oxo-... | CAS号143000-14-0 9-oxo-9-phenyl-... | CAS号143000-20-8 8-benzyl-9-oxo-...

二苯基汞置于氧气,三氯化磷体系中,化学反应生成 苯膦酰二氯
参考文献:Michaelis,Justus Liebigs Annalen Der Chemie,1876,Vol. 181,P. 322
标题:Michaelis,Justus Liebigs Annalen Der Chemie,1876,Vol. 181,P. 322

专利信息

专利号:US-7872143-B2
优先权日:2007-06-11
标题 :Facile synthesis of a series of liquid crystalline 2-(4′-alkoxyphenyl)-5-cyanopyridines
发明人：CHIA WIN-LONG; CHENG YU-WEI
权利人:UNIV FU JEN CATHOLIC
摘要:The invention relates to a facile synthesis of a series of 2-(4′-alkoxyphenyl)-5-cyanopyridine liquid crystal compounds which are represented by the following formula (I): n n n n n n n n n n wherein C n H 2n+1 is a linear alkyl group having 2-12 carbon atoms. The synthesis of the liquid crystalline 2-(4′-alkoxyphenyl)-5-cyanopyridine is completed in a two-step reaction. First, a Grignard reagent (such as 4-alkoxyphenylmagnesium bromide) is added to a 3-cyanopyridinium salt (such as N-phenyloxycarbonyl-3-cyanopyridinium chloride) to get a 1,2-dihydropyridine. Then, the 1,2-dihydropyridine is oxidized with o-chloronil to obtain the 2-(4′-alkoxyphenyl)-5-cyanopyridine.

专利号:US-10995093-B2
优先权日:2016-04-07
标 题 :Synthesis of 2′-fluoro-6′-methylene-carbocyclic adenosine (FMCA) and 2′-fluoro-6′methylene-carbocyclic guanosine (FMCG)
发明人：CHU CHUNG K; MULAMOOTTTIL VARUGHESE ALEXANDER; MISHRA RAM C; SINGH UMA SHARAN
权利人:UNIV GEORGIA
摘要:The invention provides a new convergent approach for the synthesis of 2′-fluoro-6′-methylene-carbocyclic adenosine (FMCA) and 2′-fluoro-6′-methylene-carbocyclic guanosine (FMCG) from a readily available starting material in eight steps. An efficient and practical methodology for stereospecific preparation of a versatile carbocyclic key intermediate, (1S,3R, 4R)-3-tert-butoxy-4-(tert-butoxymethyl)-2-fluoro-5-methylenecyclopentanol (compound 8 of scheme 1A or a) in only six (6) steps is also provided. Prodrugs of these compounds are also prepared.

专利号:US-4756739-A
优先权日:1985-12-21
标题 :Pyridine derivatives and the N-oxides thereof, and the use thereof as intermediates for the synthesis of plant protecting agents
发明人：FUSS ANDREAS; KOCH VOLKER
权利人:HOECHST AG
摘要:The compounds of the formula I (I) in which A denotes N or N->O, Z denotes O or NH, R denotes H, (halo)alkyl, (halo)alkenyl, (halo)alkynyl or alkoxycarbonyl, R1 denotes hydrogen, halogen, amino, -NHOH, hydroxyl, (substituted) phenylazo or a radical of the formulae Y=C=N-, Y1Y2C=N-, Y3NH- or K denotes 0 or 1, and m and n, independently of one another, denote a number from 1 to 4, with the proviso that, when Z-R denotes OH or NH2, (R1)n denotes at least one radical of the formula or represents two radicals, in the 5 or 6 position of the heterocyclic ring, which, in the 5 position, denote halogen and, in the 6 position, denote a radical of the group comprising halogen, amino, hydroxyl or phenylazo, which may be substituted as specified above, are valuable intermediates in the synthesis of plant protection agents.

专利号:US-4658031-A
优先权日:1982-10-07
标 题:Synthesis of 2-substituted-5-methyl-pyridines and intermediates therefor
发明人：HARTMANN LUDWIG A; STEPHEN JOHN F
权利人:ICI AMERICA INC
摘要:A process for the synthesis of compounds which are known intermediates for the pyridyloxyphenoxy herbicies as well as intermediates used in the process. Propionaldehyde and an acrylic compound, two readily available starting materials, are reacted to form a 2-formylpentanoic compound which is cyclized to a dihydro pyridone which is then oxidized to the 2-hydroxy pyridine. The hydroxypyridine may be halogenated to a 2-halopyridine.

专利号:US-4584380-A
优先权日:1982-10-07
标 题:Synthesis of 2-substituted-5-methyl-pyridines and intermediates therefor
发明人：HARTMANN LUDWIG A; STEPHEN JOHN F
权利人:ICI AMERICA INC
摘要:A process for the synthesis of compounds which are known intermediates for the pyridyloxyphenoxy herbicides as well as intermediates used in the process. Propionaldehyde and an acrylic compound, two readily available starting materials, are reacted to form a 2-formylpentanoic compound which is cyclized to a dihydro pyridone which is then oxidized to the 2-hydroxy pyridine. The hydroxypyridine may be halogenated to a 2-halopyridine.

专利号:US-4473696-A
优先权日:1982-10-07
标题:Synthesis of 2-substituted-5-methyl-pyridines
发明人：HARTMANN LUDWIG A; STEPHEN JOHN F
权利人:ICI AMERICA INC
摘要:A process for the synthesis of compounds which are known intermediates for the pyridyloxyphenoxy herbicides as well as intermediates used in the process. Propionaldehyde and an acrylic compound, two readily available starting materials, are reacted to form a 2-formylpentanoic compound which is cyclized to a dihydro pyridone which is then oxidized to the 2-hydroxy pyridine. The hydroxypyridine may be halogenated to a 2-halopyridine.