63523-01-3Relevant articles and documents
A new enamine synthesis: Allylation-enamination reaction of nitriles with allylindium reagents
Fujiwara, Naoya,Yamamoto, Yoshinori
, p. 4729 - 4732 (1998)
The reaction of allylindium reagents with certain nitriles 1 having another electron withdrawing group at the α-position affords the corresponding allylation-enamination products 2 in high to good yields.
Unique catalysis of gold nanoparticles in the chemoselective hydrogenolysis with H2: Cooperative effect between small gold nanoparticles and a basic support
Noujima, Akifumi,Mitsudome, Takato,Mizugaki, Tomoo,Jitsukawa, Koichiro,Kaneda, Kiyotomi
, p. 6723 - 6725 (2012/07/28)
Gold nanoparticles on hydrotalcite act as a heterogeneous catalyst for the chemoselective hydrogenolysis of various allylic carbonates to the corresponding terminal alkenes using H2 as a clean reductant. The combination of gold nanoparticles and basic supports elicited significantly unique and selective catalysis in the hydrogenolysis.
Ene Reaction of Arylallyl Alkenes with C60. A Mechanistic Approach
Chronakis, Nikos,Orfanopoulos, Michael
, p. 1909 - 1912 (2008/02/11)
(Matrix Presented) The ene reaction of arylallyl alkenes with C60 occurs either by a concerted mechanism or by the reversible formation of a charged or a dipolar intermediate, followed by the C-H(D) breakage in a rate-limiting step.
Allyl- And Benzylindium Reagents. Carboindation of Carbon-Carbon and Carbon-Nitrogen Triple Bonds
Fujiwara, Naoya,Yamamoto, Yoshinori
, p. 4095 - 4101 (2007/10/03)
The reaction of unactivated simple terminal alkynes 1 with allylindiums in THF proceeded smoothly to give the corresponding allylation products 2 in good to high yields. This result is in marked contrast to that of the reaction carried out in DMF, where the allylation of unactivated alkynes was very sluggish. The allylic group of the reagent was attached to the internal carbon of the triple bond, and indium was attached to the less substituted terminal carbon, except for the case of TMS substituted acetylenes 1j and 1k in which the allyl group went to the less substituted carbon of the triple bond. The reaction of unactivated simple terminal and certain internal acetylenes with benzylindium in THF proceeded smoothly to afford the corresponding benzylation products 18 in good to high yields. The benzyl group was attached to the less substituted unhindered carbon of the triple bond, and indium was attached to the more sterically congested carbon. The reaction of activated nitriles 3 with allylindiums in THF at 70°C gave the corresponding allylationenamination products 4 in high to excellent yields. This reaction provides a useful method for the synthesis of highly functionalized enamines, which are not easily available via conventional methods. The mechanisms on the above three indation reactions are discussed.
An efficient method for conversion of 1-alken-3-yl carbonates to 1- alkenes and 3-chloro-1-alkenes via allyltitaniums
Matsuda, Shin-Ichiro,An, Duk Keun,Okamoto, Sentaro,Sato, Fumie
, p. 7513 - 7516 (2007/10/03)
Hydrolysis and halogenolysis of the allyltitaniums derived from allylic carbonates and a Ti(O-i-Pr)4/2 i-PrMgCl reagent proceed with high regio- and stereoselectivity, thus providing an efficient method for converting 1- alken-3-yl carbonates to 1-alkenes or 3-chloro-1-alkenes.
Synthesis and reaction of (η5-pentamethylcyclopentadienyl)bis(allyl)tantalum(III) complexes; crystal structure of Ta(η5-C5Me5)(η3-1-phenylallyl)2
Mashima, Kazushi,Yamanaka, Yoshimichi,Gohro, Yoshihiko,Nakamura, Akira
, p. C6 - C8 (2007/10/02)
We report here the synthesis and X-ray structure of a mononuclear 16-electron (η5-pentamethylcyclopentadienyl)bis(allyl)-tantalum complex, Cp*Ta(η3-PhC3H4)2 (2).Carbonylation of 2 induced the coupling reaction with phenylallyl groups bound to tantalum to give 1,6-diphenyl-1,5-hexadiene and carbonyltantalum complexes.Oxidation of 2 with one-electron oxidants, DDQ and TCNQ, gave the tantalum(IV) complexes, *Ta(PhC3H4)2>.
