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News Veresterung

• Chiraltechnologie ist Spitzenreiter unter den Pharma-Zwischenprodukten

  Die Chiraltechnologie ist laut Frost & Sullivan der "leuchtende Stern am Firmament des Europamarkts für pharmazeutische Zwischenprodukte". Während der Gesamtmarkt viel langsamer an Volumen zulegt als in den 1990er Jahren von der Deutschen Bank prognostiziert, zeigt der Bereich Chiralchemie überdurch mehr

Infografiken Veresterung

Organic Chemistry Reaction Map

With it being half term here in the UK, what better use of sudden vast amounts of free time could there be than making an organic chemistry reaction map? This graphic looks at simple interconversions between common functional groups in organic chemistry. I’m not going to pretend it’s comprehensive, mehr

Fachpublikationen Veresterung

• Batch and Continuous‐Flow One‐Pot Processes using Amine Diazotization to Produce Silylated Diazo Reagents

  Abstract A novel synthesis of trimethylsilyldiazomethane (TMSCHN2) by diazotization of trimethylsilylmethylamine (TMSCH2NH2) is reported using batch and continuous flow synthesis. The latter affords a daily production of 275 g (2.4 mol) of TMSCHN2. Other silylated methylamines were also successf mehr

• Organocatalytic Friedel–Crafts Alkylation/Lactonization Reaction of Naphthols with 3‐Trifluoroethylidene Oxindoles: The Asymmetric Synthesis of Dihydrocoumarins

  Abstract Naphthols and 3‐trifluoroethylidene oxindoles were found to undergo an asymmetric Friedel–Crafts alkylation/lactonization reaction, catalyzed by only 2.5 mol % of a quinine‐derived squaramide catalyst, to afford the corresponding α‐aryl‐β‐trifluoromethyl dihydrocoumarin derivatives in h mehr

• Production of Diethyl Terephthalate from Biomass‐Derived Muconic Acid

  Abstract We report a cascade synthetic route to directly obtain diethyl terephthalate, a replacement for terephthalic acid, from biomass‐derived muconic acid, ethanol, and ethylene. The process involves two steps: First, a substituted cyclohexene system is built through esterification and Diels– mehr