Potassium hydride
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7693-26-7[H-].[K+]OCFVSFVLVRNXFJ-UHFFFAOYSA-NPotassium hydride is an alkali metal hydride.
7693-26-7CHEBI:32589Potassium hydride is available in laboratory quantities only as a 20 – 35 % dispersion in oil. Potassium hydride is a considerably stronger base than lithium hydride or sodium hydride. It is able to remove protons from tertiary alcohols and ketones, a reaction that either does not occur or is very slow when sodium hydride is used. Potassium hydride also reacts with weak Lewis acids, converting sterically hindered boron trialkyls to the corresponding sterically hindered complex borohydrides:
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용도Potassium Hydride is used in preparation of Hydroxy-Xanthone derivatives via Isoprenylation followed by Claisen rearrangement starting from Fluoroxanthone derivatives.
일반 설명This product has been enhanced for energy efficiency.
정의potassium hydride: A white orgreyish white crystalline solid, KH;r.d. 1.43–1.47. It is prepared by passinghydrogen over heated potassiumand marketed as a light grey powderdispersed in oil. The solid decomposeson heating and in contact withmoisture and is an excellent reducingagent. Potassium hydride is a firehazard because it produces hydrogenon reaction with water.
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