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DABCO (1,4-diazabicyclo[2.2.2]octane), also known as triethylenediamine or TEDA, is a bicyclic organic compound with the formula N 2 (C 2 H 4) 3. This colorless solid is a highly nucleophilic tertiary amine base , which is used as a catalyst and reagent in polymerization and organic synthesis .
It undergoes directed ortho metalation with butyl lithium: [C 6 H 5 CH 2 N(CH 3) 2 + BuLi → 2-LiC 6 H 4 CH 2 N(CH 3) 2 LiC 6 H 4 CH 2 N(CH 3) 2 + E + → 2-EC 6 H 4 CH 2 N(CH 3) 2. Via these reactions, many derivatives are known with the formula 2-X-C 6 H 4 CH 2 N(CH 3) 2 (E = SR, PR 2, etc.).
Electrophilic fluorinating reagents could in principle operate by electron transfer pathways or an S N 2 attack at fluorine. This distinction has not been decided. [2] By using a charge-spin separated probe, [3] it was possible to show that the electrophilic fluorination of stilbenes with Selectfluor proceeds through an SET/fluorine atom transfer mechanism.
This category is related to parts of a classic four-word phrase/song (hint: look closely at the beginning of each word). Related: 300 Trivia Questions and Answers to Jumpstart Your Fun Game Night.
Sigma Advanced Genetic Engineering (SAGE) Labs is a division within Sigma-Aldrich that specializes in genetic manipulation of in vivo systems for special research and development applications. It was formed in 2008 to investigate zinc finger nuclease technology and its application for disease research models.
White House press secretary Karoline Leavitt says President Trump wants the elimination of taxes on tips, overtime and Social Security to be included in a looming budget reconciliation bill.
Texas law enforcement issued a word of warning to Ford truck owners after they arrested a trio of thieves who targeted the high-end truck model by stealing taillights.
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 ...
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