XVIII.—Action of phenylhydrazine on an unsaturated γ-diketone
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چکیده
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an investigation on influencing factors on tourists shopping attitude of iranian handmade carpet in isfahan
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DABCO-catalyzed regioselective cyclization reactions of β,γ-unsaturated α-ketophosphonates or β,γ-unsaturated α-ketoesters with allenic esters.
Highly efficient DABCO-catalyzed [4 + 2] cycloaddition of β,γ-unsaturated α-ketophosphonates or β,γ-unsaturated α-ketoesters with allenic esters gives the corresponding highly functionalized tetrahydropyran and dihydropyran derivatives in good to excellent yields and moderate to good regioselectivities under mild conditions.
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The cancer potencies of phenylhydrazine and phenylhydrazine hydrochloride were estimated from dose-response data from three data sets: lung tumors among male and female mice (combined) exposed orally to phenylhydrazine hydrochloride (Clayson et al., 1966) and blood vessel tumors among male and female mice exposed orally to phenylhydrazine hydrochloride (Toth and Shimizu, 1976). Studies of pheny...
متن کاملNickel-catalysed novel β,γ-unsaturated nitrile synthesis.
Through a nickel-catalysed Heck-type reaction, a direct coupling of alkenes with α-cyano alkyl bromides was achieved. This procedure provides a novel way for the synthesis of β,γ-unsaturated nitriles.
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ژورنال
عنوان ژورنال: J. Chem. Soc., Trans.
سال: 1888
ISSN: 0368-1645
DOI: 10.1039/ct8885300184