2307-10-0Relevant articles and documents
Acyl iodides in organic synthesis. Reaction of acetyl iodide with Dialkyl sulfides and disulfides
Vlasova,Grigor'Eva,Voronkov
, p. 46 - 48 (2013)
Reactions of acetyl iodide with dialkyl and dialkenyl sulfides RSR (R = Et, Bu, CH2=CH, CH2=CHCH2) and with disulfides RSSR (R = Pr, C6H13, PhCH2) were studied. Dialkyl sulfides reacted with MeCOI to give the corresponding alkyl ethanethioates and alkyl iodides as a result of cleavage of the S-C bond. The reactions of acetyl iodide with divinyl and diallyl sulfides involved addition across the double bond and subsequent polymerization of 1-alkenylsulfanyl-2(3)- iodoalkyl methyl ketones. Dialkyl disulfides RSSR (R = Pr, C6H 13) and dibenzyl disulfide reacted with acetyl iodide via cleavage of the S-S bond to produce the corresponding ethanethioates and organylsulfenyl iodides. The latter underwent disproportionation to form the initial disulfide and molecular iodine.
Fungicidal Activity of S-Esters of Thiocarboxylic Acids as Antimicrobial Additives to Petroleum Products
Aliev,Belovezhets,Oparina
, p. 99 - 105 (2019/04/27)
Abstract: A variety of aliphatic and aromatic S-esters of thiocarboxylic acids have been tested for antimicrobial activity. The relationship between the chemical structure of the compounds R1SC(O)R2 and their toxicity for microorganisms has been revealed, and the effect of various functional groups on the antimicrobial properties has been shown. The cooling lubricant IKhP-45E with S-aryl thioacetate additives has been tested. It has been shown that the additives used (0.25–0.5 wt %) inhibit the growth of all the studied microorganisms; however, their activity with respect to fungi is higher. The introduction of S-aryl thioacetates provides the resistance of these oils to microbiological deterioration to retain the physicochemical properties for a long period of time.
In situ generated Ph3P(OAc)2as a novel reagent for the efficient acetylation of alcohols and thiols at room temperature
Iranpoor, Nasser,Firouzabadi, Habib,Elham, Etemadi Davan
, p. 1813 - 1816 (2013/04/24)
Ph3P, Br2, and ammonium acetate are used for the in situ generation of Ph3P(OAc)2, which was characterized by different NMR techniques. The Ph3P(OAc)2generated was used as a novel and efficient reagent for the acetylation of alcohols and thiols in acetonitrile at room temperature under homogeneous conditions. This reaction was also performed under heterogeneous conditions using 1,3,2,4- diazadiphosphetidine as an easily prepared, stable, and heterogeneous P(III) compound.
FUNCTIONALIZATION OF SATURATED HYDROCARBONS IN THE PRESENCE OF APROTIC ORGANIC SUPERACIDS. 2. SINGLE-STAGE SYNTHESIS OF THIOESTERS R1CO-SR FROM n-ALKANES OR CYCLOALKANES (RH), ELEMENTAL SULFUR, AND COMPLEXES R1COBr*2AlBr3
Orlinkov, A. V.,Akhrem, I. S.,Afanas'eva, L. V.,Vitt, S. V.,Vol'pin, M. E.
, p. 90 - 92 (2007/10/02)
It has been found for the first time that n-alkanes and cycloalkanes (RH) can interact with elemental sulfur at ca. 20 deg C.These reactions go forward in the presence of aprotic organic superacids with the composition R1CO-SR in satisfactory yields.
A SIMPLE PREPARATION OF S-ALKYL HOMOCYSTEINE DERIVATIVES: S-PHOSPHONOMETHYL HOMOCYSTEINES AS INHIBITORS OF GLUTAMINE SYNTHETASE
Logusch, Eugene W.
, p. 6055 - 6058 (2007/10/02)
A facile synthesis of S-alkyl homocysteines is described which features the coupling of sodium alkyl thiolates with methyl 4-bromo-2-phthalimidobutyrate, followed by hydrolysis.This approach is exemplified by the synthesis of S-phosphonomethyl homocysteine sulfone, a new inhibitor of the enzyme glutamine synthetase.
Production of S-Methyl Thioacetate from Methyl Mercaptan by Brewer's Yeast
Matsui, Shin-ichi,Amaha, Mikio
, p. 1341 - 1350 (2007/10/02)
S-Methyl thioacetate (MeSAc) production by brewer's yeast from methyl mercaptan (MeSH) was investigated under various conditions.At optimum, 98 mg/liter of MeSAc was produced from 500 mg/liter of MeSH contained in culture broth.The MeSAc level in yeast growth medium was increased with increasing MeSH at relatively low levels (10 to 500 mg/liter).However, higher MeSH levels in medium (over 1 g/liter) inhibited yeast growth, and no MeSAc was produced.MeSAc was formed readily by incubating MeSH with yeast resting cells.Furthermore, S-ethyl or S-n-propyl thioacetate accumulated in yeast cell suspension when ethyl or n-propyl mercaptan, respectively, was incubated with resting cells.MeSAc was also produced from L-methionine by brewer's yeast, but its formation was dramatically inhibited by copper ions.This finding suggests that MeSH is an intermediate product between L-methionine and MeSAc.
