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The Shapiro reaction or tosylhydrazone decomposition is an organic reaction in which a ketone or aldehyde is converted to an alkene through an intermediate hydrazone in the presence of 2 equivalents of organolithium reagent. [1] [2] [3] The reaction was discovered by Robert H. Shapiro in 1967. [4]
The original design was based on the 19 mm Becker cannon cartridge by the Coenders brothers at Stahlwerke Becker of Reinickendorf, Germany. [2] [3] Development commenced in 1913 and was therefore already advanced when the War Ministry issued a specification in June 1915 calling for an aircraft cannon of under 37 mm caliber and 70 kg weight capable of firing a 10-round burst.
The New York Times reported "more than 900 manufacturers' coupons were distributed" per household, and that "the United States Department of Agriculture estimates that four families in five use coupons. [2] "Only about 4 percent" of coupons received were redeemed. [2] Coupons can be targeted selectively to regional markets in which price ...
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The U-20 Africa Cup of Nations, known for short as the U-20 AFCON and for sponsorship purposes as TotalEnergies U-20 Africa Cup of Nations, previously known as the African Youth Championship and the African U-20 Championship, is the biennial international youth football tournament organized by the Confederation of African Football (CAF) for its nations consisting of players under the age of 20.
Betty Crocker is a cultural icon, as well as brand name and trademark of American Fortune 500 corporation General Mills. The name was first developed by the Washburn ...
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