111-17-1Relevant articles and documents
A very useful and mild method for the deoxygenation of sulfoxide to sulfide with silica bromide as heterogeneous promoter
Mohanazadeh, Farajollah,Veisi, Hojat,Sedrpoushan, Alireza,Zolfigol, Mohammad Ali,Golmohammad, Fereshteh,Hemmati, Saba,Hashemi, Majid
, p. 7 - 13 (2014/01/06)
Silica bromide (SB) as heterogeneous reagent and promoter is prepared from reaction of silica gel with PBr3 as a non-hydroscopic, filterable, cheap, and stable yellowish powder that can be stored for months. The results show that the SB is suitable and efficient reagent for deoxygenation of sulfoxides to the corresponding sulfides under mild conditions at room temperature. The easy availability of this reagent makes this simple procedure attractive and a practical alternative to the existing methods.
METHOD FOR PRODUCING BETA-MERCAPTOCARBOXYLIC ACID
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Paragraph 0094; 0095; 0096; 0097; 0098; 0099; 0100; 0107, (2014/10/15)
A process for preparing β-mercaptocarboxylic acid of the present invention is provided with Step a for reacting a compound represented by a formula: X12S (X1 represents hydrogen, Na or K) or a compound represented by a formula: X2SH (X2 represents Na or K), alkali hydroxide represented by a formula: X3OH (X3 represents Na or K), and unsaturated carboxylic acid represented by the following General Formula (1) to obtain a reaction solution including a compound represented by the following General Formula (2) and a compound represented by the following General Formula (3), Step b for neutralizing the reaction solution obtained in Step a with an acid to obtain a reaction solution including β-mercaptocarboxylic acid represented by the following General Formula (4) and a compound represented by the following General Formula (5), Step c for distillation-refining the reaction solution obtained in Step b to obtain the β-mercaptocarboxylic acid represented by General Formula (4), and Step d for returning a distillation residue including the compound represented by General Formula (5) in Step c to Step a.
Rationalisation of the regioselective hydrolysis of aliphatic dinitriles with Rhodococcus rhodochrous AJ270
Meth-Cohn, Otto,Wang, Mei-Xiang
, p. 1041 - 1042 (2007/10/03)
Aliphatic dinitriles undergo regioselective hydrolysis with the title organism to give monoacids with up to four methylenes between the nitrile functions (optimally 2-3) or when either an oxygen is placed β, γ or δ to the nitrile (δ-placement being optimal) or β or γ (optimally γ) but not δ sulfur substituents are present; nitrogen substituents appear to behave as for oxygen but suffer a steric limitation of the size of the nitrogen substituent.