600-05-5Relevant articles and documents
A 2, 3 - two bromine propionyl chlorides production process (by machine translation)
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Paragraph 0007, (2017/08/28)
The present invention relates to the field of producing chemical products, especially 2, 3 - two bromine propionyl chlorides production field. 2. 3 - two bromine propionyl chlorides is an important chemical raw materials. Currently in production have different production process. The process flow includes: 1, addition; 2, distillation. (by machine translation)
An economical and convenient synthesis of vinyl sulfones
Guan, Zheng-Hui,Zuo, Wei,Zhao, Lian-Biao,Ren, Zhi-Hui,Liang, Yong-Min
, p. 1465 - 1470 (2008/02/05)
A general process for the efficient synthesis of vinyl sulfones has been developed using commercially available sulfinic acid sodium salts and dibromides. A variety of phenyl and methyl vinyl sulfones have been formed in good yields, in the absence of any catalyst. Georg Thieme Verlag Stuttgart.
Kinetic study of the Ce(III)-, Mn(II)-, or ferroin-catalyzed belousov-zhabotinsky reaction with allylmalonic acid
Yu, Yueh-O.,Jwo, Jing-Jer
, p. 433 - 439 (2007/10/03)
In a stirred batch experiment and under aerobic conditions, ferroin (Fe(phen)32+) behaves differently from Ce(III) or Mn(II) ion as a catalyst for the Belousov-Zhabotinsky (BZ) reaction with allylmalonic acid (AMA). The effects of bromate ion, AMA, metal-ion catalyst, and sulfuric acid on the oscillating pattern were investigated. The kinetics of the reaction of AMA with Ce(IV), Mn(III), or Fe(phen)33+ ion was studied under aerobic or anaerobic conditions. The order of reactivity of metal ions toward reaction with AMA is Fe(phen)33+ > Mn(III) > Ce(IV) under aerobic conditions whereas it is Mn(III) > Ce(IV) > Fe(phen)33+ under anaerobic conditions. Under aerobic or anaerobic conditions, the order of reactivity of RCH(CO2H)2 (R = H (MA), Me (MeMA), Et (EtMA), allyl (AMA), n-Bu (BuMA), Ph (PhMA), and Br (BrMA)) is PhMA > MA > BrMA > AMA > MeMA > EtMA > BuMA toward reaction with Ce(IV) ion and it is MA > PhMA > BrMA > MeMA > AMA > EtMA > BuMA toward reaction with Mn(III) ion. Under aerobic conditions, the order of reactivity of RCH(CO2H)2 toward reaction with Fe(phen)33+ ion is PhMA > BrMA > (MeMA, AMA) > (BuMA, EtMA) > MA. The experiment results are rationalized.
Reaction of (α-halogenoalkyl)thiiranes with nucleophilic reagents I. Reaction with morpholine
Tomashevskii, A. A.,Sokolov, V. V.,Potekhin, A. A.
, p. 1610 - 1618 (2007/10/03)
By means of deuterated compounds it was established that (chloromethyl)thiirane reacts with morpholine by a mechanism involving initial opening of the thiirane ring followed by recyclization.In the case of (bromomethyl)thiirane direct substitution of the bromine begins to compete with this mechanism. 2-Methyl-2-(chloromethyl)thiirane, 2,2-dimethyl-3-(chloromethyl)thiirane, and the diastereomeric (1-chloroethyl)thiiranes were synthesized, and their reactivity toward morpholine was studied.
Process for the preparation of 2,3-dibromopropionyl chloride
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, (2008/06/13)
An improved process for the preparation of 2,3-dibromopropionyl chloride, which comprises brominating acrylic acid, adding iron powder or an iron salt to the resultant melt, chlorinating the dibromopropionic acid obtained, and removing the volatile components. The 2,3-dibromopropionyl chloride is obtained in high yield and purity and is an intermediate for synthesising in particular reactive dyes.
Synthesis and properties of germa-γ-lactones
Kakimoto, Norihiro,Yoshiwara, Tohru,Akiba, Mitsuo,Ishido, Yoshiharu
, p. 247 - 254 (2007/10/02)
Trialkylgermylpropanoic acids treated with 1 mole of bromine afford the monobromopropanoic acids, which are converted into the corresponding germa-γ-lactones in good yields by hydrolysis.The physical, chemical, and biological properties of these compounds are described.