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Aldrichimica Acta is a scientific journal published by Sigma-Aldrich. Established in 1968 in Milwaukee, Wi, Aldrichimica Acta publishes reviews in the field of synthetic organic chemistry, with each issue focusing on a special topic. The journal is open access. In 2015, the Acta was ranked #1 among journals in the field of organic chemistry by ...
Sigma-Aldrich was created in 1975 by the merger of Sigma Chemical Company and Aldrich Chemical Company. It grew through various acquisitions until it had over 9,600 employees and was listed on the Fortune 1000. The company has two United States headquarters, in St. Louis and Burlington, MA and has operations in approximately 40 countries. [7 ...
Tetraethylene glycol dimethyl ether (TEGDME or tetraglyme) is a polar aprotic solvent with excellent chemical and thermal stability.Its high boiling point and stability makes it an ideal candidate for separation processes and high temperature reactions.
2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (or DDQ) is the chemical reagent with formula C 6 Cl 2 (CN) 2 O 2. This oxidant is useful for the dehydrogenation of alcohols, [3] phenols, [4] and steroid ketones. [5] DDQ decomposes in water, but is stable in aqueous mineral acid. [6]
18-Crown-6 is an organic compound with the formula [C 2 H 4 O] 6 and the IUPAC name of 1,4,7,10,13,16-hexaoxacyclooctadecane. It is a white, hygroscopic crystalline solid with a low melting point. [1]
This chemical is used in the paper, textile, rubber and pharmaceutical industries. Propyleneimine is also used in making paint. The top global producers of this specialty chemical include DuPont, Mitsubishi Chemical Holdings Corporation, Sigma-Aldrich, Dixie Chemical Company, J and K Scientific, Apollo Scientific, Mitsui Chemicals.
Because of the dangers involved in the preparation of DAST (glass etching, possibility of exothermic events), it is often purchased from a commercial source. At one time Carbolabs [6] was one of the few suppliers of the chemical but a number of companies now sell DAST. Carbolabs was acquired by Sigma-Aldrich in 1998.
Methyl trifluoromethanesulfonate, also commonly called methyl triflate and abbreviated MeOTf, is the organic compound with the formula CF 3 SO 2 OCH 3.It is a colourless liquid which finds use in organic chemistry as a powerful methylating agent. [2]
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