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  2. Captodative effect - Wikipedia

    en.wikipedia.org/wiki/Captodative_effect

    The olefins contained an EWG nitrile group and varying EDGs and the effect of varying EDGs on the rate of the addition reactions was observed. The process studied was: The process studied was: The rate of the addition reaction was accelerated by the following EDGs in increasing order: H < CH 3 < OCH 2 CH 3 .

  3. Electrophilic aromatic directing groups - Wikipedia

    en.wikipedia.org/wiki/Electrophilic_aromatic...

    Only the dimer form is available for +M effect. However, the dimer form is less stable in a solution. Therefore, the nitroso group is less available to donate electrons. Oppositely, withdrawing electron density is more favourable: (see the picture on the right). The -M effect of the nitroso group. As a result, the nitroso group is a deactivator.

  4. Electron-withdrawing group - Wikipedia

    en.wikipedia.org/wiki/Electron-withdrawing_group

    The strength of the electron-withdrawing group is inversely proportional to the pKa of the carboxylic acid. [2] The inductive effect is cumulative: trichloroacetic acid is 1000x stronger than chloroacetic acid. The impact of the EWG on pKa decreases with distances from the carboxylic group.

  5. EWG Releases New "Dirty Dozen" Guide to Food Additives - AOL

    www.aol.com/food/ewg-releases-new-dirty-dozen...

    You may be familiar with the Environmental Working Group (EWG) because they release a list of the most pesticide-filled produce every year called The Dirty Dozen. They also establish the produce ...

  6. Blueberries, strawberries again on the ‘Dirty Dozen’ list

    www.aol.com/news/pesticides-produce-2024-dirty...

    Based on government tests of pesticide levels, here is the Environmental Working Group’s 2024 list of the produce with the highest and lowest levels of pesticides.

  7. Environmental Working Group - Wikipedia

    en.wikipedia.org/wiki/Environmental_Working_Group

    The Environmental Working Group (EWG) is an American activist group that specializes in research and advocacy in the areas of agricultural subsidies, toxic chemicals, drinking water pollutants, and corporate accountability. EWG is a 501(c)(3) nonprofit organization.

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