38282-01-8Relevant articles and documents
Functionalized hyperbranched grafts on polyethylene powder for support of Pd(0)-phosphine catalyst
Bergbreiter, David E.,Kippenberger, Andrew M.,Tao, Guoliang
, p. 2158 - 2159 (2002)
Hyperbranched grafts of poly(acrylic acid) have been modified with phosphine ligands for support of Pd(0) for use in allylic substitution chemistry.
Terminally functionalized polyisobutylene oligomers as soluble supports in catalysis
Bergbreiter, David E.,Li, Jun
, p. 42 - 43 (2004)
A new phase selective hydrocarbon soluble polymer support is described.
C-N Bond Formation from Allylic Alcohols via Cooperative Nickel and Titanium Catalysis
Nazari, S. Hadi,Tiempos-Flores, Norma,Forson, Kelton G.,Bourdeau, Jefferson E.,Michaelis, David J.
, p. 10646 - 10654 (2018/09/06)
Amination of allylic alcohols is facilitated via cooperative catalysis. Catalytic Ti(O-i-Pr)4 is shown to dramatically increase the rate of nickel-catalyzed allylic amination, and mechanistic experiments confirm activation of the allylic alcohol by titanium. Aminations of primary and secondary allylic alcohols are demonstrated with a variety of amine nucleophiles. Diene-containing substrates also cyclize onto the nickel allyl intermediate prior to amination, generating carbocyclic amine products. This tandem process is only achieved under our cooperative catalytic system.
Anti-Markovnikov rearrangement in sulfur mediated allylic C-H amination of olefins
Zhang, Zhong,Du, Hongguang,Xu, Jiaxi,Li, Pingfan
supporting information, p. 11547 - 11550 (2016/10/03)
Cationic rearrangement reactions usually follow Markovnikov's rule to give more substituted carbocations as stable intermediates. During our study on sulfur mediated allylic C-H amination of olefins, very rare cases of anti-Markovnikov rearrangement from secondary carbocations toward primary carbocations or primary triflates were observed.