Solid-phase synthesis of 4-methylene pyrrolidines and allylic amines using palladium-activated allylic linkers
作者:Richard C. D. Brown、Martyn L. Fisher、Lynda J. Brown
DOI:10.1039/b303752e
日期:——
transformations included a Lewis-acid promoted imino-Sakurai type reaction and reductive alkylation prior to the final palladium-catalysed cyclisation cleavage of the allylic carboxylate linkage. Allylic carboxylate resin 22 was also shown to undergo "traceless" cleavage using various hydride sources in the presence of catalytic palladium. A more robust allylic ether linkage was also investigated. Starting
Palladium-catalysed nucleophilic release of allylic amines from a phenolic resin
作者:Martyn Fisher、Richard C.D Brown
DOI:10.1016/s0040-4039(01)01739-7
日期:2001.11
2° Allylic alcohols were coupled to phenolic polystyrene resin under Mitsunobu conditions to provide substituted allyl ethers, which underwent efficient nucleophilic cleavage by 1° and 2° amines in the presence of catalytic palladium to afford allylic amines.
Highly Regio- and Enantioselective Pd-Catalyzed Allylic Alkylation and Amination of Monosubstituted Allylic Acetates with Novel Ferrocene <i>P,N</i>-Ligands
作者:Shu-Li You、Xia-Zhen Zhu、Yu-Mei Luo、Xue-Long Hou、Li-Xin Dai
DOI:10.1021/ja016121w
日期:2001.8.1
Intramolecular [2 + 2] and [4 + 2] Cycloaddition Reactions of Cinnamylamides of Ethenetricarboxylate in Sequential Processes
Intramolecular [2 + 2] and [4 + 2] cycloaddition reactions of cinnamylamides of ethenetricarboxylate in sequential processes have been studied. Reaction of 1,1-diethyl 2-hydrogen ethenetricarboxylate and trans-cinnamylamines in the presence of EDCI/HOBt/Et3N led to pyrrolidine products in one pot, via intramolecular [2 + 2], [4 + 2], and some other cyclizations. The types of the products depend on
Novel chemistry of the imda adducts of the amides derived from dichloromaleic anhydride and β-aminomethylstyrenes
作者:Janet R. Dawson、John M. Mellor
DOI:10.1016/0040-4039(95)01907-y
日期:1995.12
Reaction of amides derived from dichloromaleic anhydride and β-aminomelhylstyrenes affords unstable DielsAlderadducts, which give via competing processes a number of products including pyrrolidinones by a novel sequence of dehydrochlorination and subsequent ring-opening of a cyclohexadiene. t]