RIED W.; MOESINGER O., CHEM. BER. <CHBE-AM>, 1978, 111, NO 1, 143-154
作者:RIED W.、 MOESINGER O.
DOI:——
日期:——
Synthesis of Cyclic Guanidines Bearing <i>N</i>-Arylsulfonyl and <i>N</i>-Cyano Protecting Groups via Pd-Catalyzed Alkene Carboamination Reactions
作者:Luke J. Peterson、Jingyi Luo、John P. Wolfe
DOI:10.1021/acs.orglett.7b00946
日期:2017.6.2
Palladium-catalyzedcarboaminationreactions of N-allylguanidines bearing cleavable N-cyano or N-arylsulfonyl protecting groups are described. The reactions afford cyclic guanidine products in good yield, and transformations of substrates bearing internal alkenes proceed with high diastereoselectivity. Deuterium labeling studies indicate these transformations proceed via anti-aminopalladation pathways
Optimization of methods for the generation of carbodiimides for zwitterionic 1,3-diaza-Claisen rearrangements
作者:Joel D. Walker、José S. Madalengoitia
DOI:10.1016/j.tetlet.2015.04.064
日期:2015.6
Strained, tertiary, allylic, amine 2-benzyl-2-azabicyclo[2.2.1]hept-5-ene reacts with in situ generated carbodiimides in a 1,3-diaza-Claisenrearrangement to afford structurally interesting bicyclic guanidines. Use of more electron deficient carbodiimides makes these rearrangements more facile; however, there are not sufficient methods for the synthesis of highly electron deficient carbodiimides. Herein