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Organic superbases are mostly charge-neutral, nitrogen containing species, where nitrogen act as a proton acceptor. These include the phosphazenes, phosphanes , amidines, and guanidines. Other organic compounds that meet the physicochemical or structural definitions of 'superbase' include proton chelators like the aromatic proton sponges and ...
In chemistry, the Verkade base (or Verkade superbase) is a powerful superbase with the formula P(MeNCH 2 CH 2) 3 N. A colorless oil, it is an aminophosphine although its inventor John Verkade called it proazaphosphatrane.
The high reactivity of Schlosser's base is exploited in synthetic organic chemistry for the preparation of organometallic reagents. For example, potassium benzyl can be prepared from toluene using this reagent. Benzene and cis/trans-2-butene are also readily metalated by Schlosser's base. Toluene, benzene, and butenes react only slowly with ...
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United Natural Foods, Inc. (UNFI) is a Providence, Rhode Island–based natural and organic food company. The largest publicly traded wholesale distributor of health and specialty food in the United States and Canada, [3] [4] it is Whole Foods Market's main supplier, with their traffic making up over a third of its revenue in 2018.
Kirkland organic eggs sold at Costco recalled The Kirkland brand eggs included in the recall were sold to 25 Costco stores starting in late November, according to the U.S. Food and Drug ...
Organic whole carrots, which do not have a best-if-used-by date printed on the bag, but were available for purchase at retail stores from Aug. 14 through Oct. 23, 2024.Organic baby carrots with ...
In Organic Chemistry, superacids are used as a means of protonating alkanes to promote the use of carbocations in situ during reactions. The resulting carbocations are of much use in organic synthesis of numerous organic compounds, the high acidity of the superacids helps to stabilize the highly reactive and unstable carbocations for future ...