Results 31 to 40 of about 3,914,198 (256)
Журнал органічної та фармацевтичної хімії, 2020 Aim. To study the synthetic potential of cyclization of N-(β-polyfluoroacyl)vinyl derivatives of proline and N-substituted glycines into polyfluoroalkyl pyrroles, which are useful intermediates to fluorinated pyrrolidine alkaloids.
Anton A. Klipkov +3 more
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Polymerization of Vinyl Compounds by the Sodium-adducts of Heterocyclic Vinyl Compounds
Nippon kagaku zassi, 1960 側鎖にビニル基をもった複素環式化合物すなわちビニルピリジン,ビニルフラン,ビニルチオフェン等の金属ナトリウムとの付加化合物の合成を行ない,これらの付加化合物による数種のビニル化合物の重合反応を試みた結果,いずれの付加化合物も求電子的官能基をもつビニル化合物に対してはいちじるしい重合触媒活性を有するが,求核的官能基をもつビニル化合物に対しては共役系ビニル化合物についてのみ触煤活性が認められ,しかもこの触媒活性は付加化合物の種類によって異なることが認められた。一方付加化合物の電子スピン共鳴吸収,近紫外部吸収スペクトルの測定結果から推定される付加化合物の構造はラジカルアニオンであるが,低温では付加化合物からビニル化合物への電子移動によるアニオン重合が支配的であると考えると ...
Keiji KUWATA +2 more
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Combined experimental and computational investigations of rhodium-catalysed C-H functionalisation of pyrazoles with alkenes [PDF]
, 2014 Detailed experimental and computational studies have been carried out on the oxidative coupling of the alkenes C(2)H(3)Y (Y=CO(2)Me (a), Ph (b), C(O)Me (c)) with 3-aryl-5-R-pyrazoles (R=Me (1 a), Ph (1 b), CF(3) (1 c)) using a [Rh(MeCN)(3)Cp*][PF(6)](2 ...
Algarra, Andrés G. +6 more
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Vinyl‐ and Arylnitrogen Compounds
ChemInform, 2005 AbstractFor Abstract see ChemInform Abstract in Full Text.
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Molecules, 2002 In the Baylis-Hillman reaction of aryl aldehydes with phenyl vinyl ketone we have observed exclusive formation of diadducts 4, and that the yields of diadduct can reach 80% with increasing amounts of phenyl vinyl ketone.
Jian-Kang Jiang, Chao-Qun Li, Min Shi
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Biocatalytic preparation and absolute configuration of enantiomerically pure fungistatic anti-2-benzylindane derivatives. Study of the detoxification mechanism by Botrytis cinerea [PDF]
, 2010 Enantiomerically pure 2-benzylindane derivatives were prepared using biocatalytic methods and their absolute configuration determined. (1R,2S)-2-Benzylindan-1-ol ((1R,2S)-2) and (S)-2-benzylindan-1-one ((S)-3) were produced by fermenting baker’s yeast.
Aleu +23 more
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Metal‐Free Synthesis of 1,3‐Divinylimidazolidin‐2‐One
ChemistryOpenA new one‐pot synthesis of 1,3‐divinylimidazolidin‐2‐one (DVI) starting from cheap and commercially available substances, i.e., di(chloroethyl)amine and phosgene or triphosgene was developed.
Sabine Lorenzen +6 more
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Process for curing bismaleimide resins [PDF]
, 1986 This invention relates to vinyl pyridine group containing compounds and oligomers, their advantageous copolymerization with bismaleimide resins, and the formation of reinforced composites based on these copolymers.
OTHY S.imides alone., Parker, John A.
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Asymmetric preparation of antifungal 1-(4 -chlorophenyl)-1-cyclopropyl methanol and 1-(4 -chlorophenyl)-2-phenylethanol. Study of the detoxification mechanism by Botrytis cinerea [PDF]
, 2011 Chiral alcohols are important as bioactive compounds or as precursors to such molecules. On the basis of the different antifungal properties of the enantiopure alcohol derivatives of 4-chlorophenyl cyclopropyl ketone and benzyl 4-chlorophenyl ketone ...
Aleu Casatejada, Josefina +4 more
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E-Journal of Chemistry, 2005 Several 2-[2-{(4-substitutedbenzylidene)-phenyl}vinyl]-4-oxo-3,4-dihydroquinazolone-6-sulfonicacid 4(a-l) and 2-[2-{4-(3-chloro-4-substituedphenyl-azetidin-2-one)-phenyl}vinyl]-4-oxo-3,4-dihydroqui-nazolone-6-sulfonic acid 5(a-l) were synthesized by ...
A. R. Desai, R. U. Roy, K. R. Desai
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