2622-53-9Relevant articles and documents
P4VPy–CuO nanoparticles as a novel and reusable catalyst: application at the protection of alcohols, phenols and amines
Shirini, Farhad,Fallah-Shojaei, Abdollah,Abedini, Masoumeh,Samavi, Laleh
, p. 1699 - 1712 (2016/07/27)
P4VPy–CuO nanoparticles were synthesized using ultrasound irradiations. Relevant properties of the synthesized nanoparticles were investigated by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and Fourier transform infrared spectroscopy. After identification, the prepared reagent was used for the promotion of different types of protection reactions of alcohols, phenols and amines. Easy workup, short reaction times, excellent yields, relatively low cost and reusability of the catalyst are the striking features of the reported methods.
Nickel-catalyzed multi-component connection reaction of isoprene, aldimines (lactamines), and diphenylzinc
Kojima, Keisuke,Kimura, Masanari,Ueda, Satoshi,Tamaru, Yoshinao
, p. 7512 - 7520 (2007/10/03)
Ni(acac)2 catalyzes the four-component connection reaction of diphenylzinc, isoprene, aromatic aldehydes, and aromatic amines in this order and provides stereochemically homogeneous (E)-1-arylamino-1-aryl-3-methyl-5-phenyl-3-pentenes (1) in excellent yields. Aliphatic aldehydes react similarly and give (E)-1-arylamino-1-alkyl-3-methyl-5-phenyl-3-pentenes (1) in slightly reduced yields. When the alkyl groups are bulky, in addition to 1 are formed (E)-1-arylamino-1-alkyl-4-methyl-5-phenyl-3-pentenes (1′) as the minor products. Lactamines prepared in situ from five- and six-membered lactols and aromatic amines are more reactive than alkyl aldehyde aldimines and furnish (E)-4-arylamino-6-methyl-8-phenyl-6-octen-1-ols (4) and (E)-5-arylamino-7-methyl-9- phenyl-7-nonen-1-ols (5), respectively, in good yields with excellent E-stereoselectivity.
Palladium-catalyzed addition of R2NH to double bonds. Synthesis of α-amino tetrahydrofuran and pyran rings
Cheng,King Kuok Hii
, p. 5445 - 5450 (2007/10/03)
Efficient addition of R1R2NH to unsaturated heterocycles has been achieved using palladium catalysts. The methodology was applied to the synthesis of a number of α-amino tetrahydrofurans and pyrans. Nature of amine, ring size and cat
