110482-96-7Relevant articles and documents
Radical reaction using an organocopper reagent derived from ethyl bromodifluoroacetate
Sato, Kazuyuki,Ogawa, Yuko,Tamura, Misato,Harada, Mika,Ohara, Terumasa,Omote, Masaaki,Ando, Akira,Kumadaki, Itsumaro
, p. 1285 - 1295 (2002)
In our previous work, reaction of ethyl bromodifluoroacetate (1) in the presence of Cu powder with olefins activated by an electron-withdrawing group gave the Michael-type adducts through an anionic intermediate. The same reaction with non-activated olefi
Reactions of ethyl bromodifluoroacetate in the presence of copper powder
Sato,Omote,Ando,Kumadaki
, p. 509 - 515 (2004)
We have examined the reaction of ethyl bromodifluoroacetate (1) in the presence of copper powder as a procedure for the synthesis of compounds containing a CF2 group. The complex formed in the above reaction reacted with vinyl or aryl iodides t
Preparative Flow Techniques; 1. Low-Temperature Organometallic Reactions: Synthesis of Ethyl 2,2-Difluoro-4-pentenoate
Kolb, Michael,Gerhart, Fritz,Francois, Jean-Paul
, p. 469 - 470 (1988)
A convenient preparation of the synthetically useful ethyl 2,2-difluoro-4-pentenoate using the low-temperature flow technique is described.The method is suitable for small-scale as well as for large-scale application.
A new strategy for the synthesis of fluorinated 3,4-dihydropyrimidinones
Fustero, Santos,Catalán, Silvia,Ace?a, José Luis,del Pozo, Carlos
experimental part, p. 1145 - 1150 (2010/03/01)
A new family of 3,4-dihydropyrimidinones (DHPMs) bearing fluorinated substituents at C6 have been prepared from gem-difluorinated nitriles, alkyl 3-butenoates and iso(thio)cyanates. This novel Biginelli-type process relies on the γ-addition of the ester-derived enolate to fluorinated nitriles. A tandem nucleophilic addition aza-Michael reaction sequence completes the synthetic process.
Synthesis and biological evaluation of new bicyclic fluorinated uracils through ring-closing metathesis
Fustero, Santos,Catalan, Silvia,Piera, Julio,Sanz-Cervera, Juan F.,Fernandez, Begona,Acena, Jose Luis
, p. 4010 - 4013 (2007/10/03)
Two families of bicyclic fluorinated uracils have been prepared starting from a gem-difluorinated unsaturated nitrile, by means of a ring-closing metathesis reaction to form the new ring, which is fused at the C-5/C-6 or N-1/C-6 positions of the uracil mo
FLUORINATED ALKENYLTRIAZINES AND THEIR USE AS CROSSLINKING AGENTS
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, (2008/06/13)
Disclosed herein are novel fluorinated vinyl and allyl substituted fluoroalkyl containing triazines and a process in which they are used as curing agents for the crosslinking of suitable fluoroelastomers. These polymers are useful in elastomeric seals and for other uses in which high temperature and/or chemical resistance is needed.
Process for the preparation of 2,2-difluoropent-4-enoic acids and acid derivatives
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, (2008/06/13)
The reaction of allyl bromo- or chloro-difluoroacetates with monochlorisilanes in the presence of zinc with heating gives silyl esters of α,α-difluoro-γ,δ-pentenoic acids. The free acids, from which acid derivatives can be prepared by conventional methods, are obtained by hydrolysis. The pentenoic acids and pentenoic acid derivatives are suitable for the preparation of polymers and copolymers, from which metal-organic polymers and copolymers having catalytic properties are obtainable.
Continuous large-scale production of ethyl 2,2-difluoro-4-pentenoate and 2-fluorinated methyl aminoacetonitriles by use of a flow reactor
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, (2008/06/13)
The large scale preparation of ethyl 2,2-difluoro-4- pentenoate and 2-fluorinated methyl aminoacetonitriles by reaction of 2-H-perfluoroethyl allyl ether and n-butyl lithium and fluoromethylacetonitrile and a Grignard reagent, respectively, is largly unsuccessful because of side reactions which convert intermediate products and reactants to undesired products. Applicants have overcome these problems by performing the reactions with cooling in a continuous manner in a flow reactor with short residence time.
FLUORINE-CONTAINING ORGANOZINC REAGENTS. V. THE REFORMATSKII-CLAISEN REACTION OF CHLORODIFLUOROACETIC ACID DERIVATIVES
Greuter, Hans,Lang, Robert W.,Romann, Andres J.
, p. 3291 - 3294 (2007/10/02)
Silicon induced Reformatskii-Claisen reaction of allyl chlorodifluoroacetate (1) affords 2,2-difluoro-4-pentenoic acid (2) in good yields.Starting from inexpensive chlorodifluoroacetic acid, a variety of useful fluorine-containing synthetic building block