Combination of air/moisture/ambient temperature compatible organolithium chemistry with sustainable solvents: Selective and efficient synthesis of guanidines and amidines
Highly-efficient and selective fast addition of in situ generated lithium amides [LiN(H)R] (obtained via an acid-base reaction between n-BuLi and the desired primary amine) into carbodiimides (R-NCN-R) or nitriles (R-CN) has been studied, for the first ti
Charge Effects in PCP Pincer Complexes of NiII bearing Phosphinite and Imidazol(i)ophosphine Coordinating Jaws: From Synthesis to Catalysis through Bonding Analysis
This contribution reports on a new family of NiII pincer complexes featuring phosphinite and functional imidazolyl arms. The proligands RPIMCHOPR′ react at room temperature with NiII precursors to giv
Direct palladium(II)-catalyzed synthesis of arylamidines from aryltrifluoroborates
A fast and convenient synthesis of arylamidines starting from readily available potassium aryltrifluoroborates and cyanamides is reported. The coupling was achieved by Pd(II)-catalysis in a one step 20 min microwave protocol using Pd(O2CCF
Saevmarker, Jonas,Rydfjord, Jonas,Gising, Johan,Odell, Luke R.,Larhed, Mats
supporting information; experimental part
p. 2394 - 2397
(2012/06/18)
Addition of amines to nitriles catalyzed by ytterbium amides: An efficient one-step synthesis of monosubstituted N-arylamidines
A one-step synthesis of monosubstituted N-arylamidinates via addition of amines to nitriles catalyzed by ytterbium amides is reported. The reactions with various substrates give the products in good to excellent yields with 5 mol % ytterbium at 100 °C under solvent-free conditions.
Wang, Junfeng,Xu, Fan,Cai, Tao,Shen, Qi
p. 445 - 448
(2008/09/19)
Copper(I)-induced addition of amines to unactivated nitriles: The first general one-step synthesis of alkyl amidines
Cu(I)Cl promotes the condensation of acetonitrile 1a and benzonitrile 1b with primary and secondary amines 2a-g into amidines 3a-j under mild conditions, in high to quantitative yields. Stoichiometric formation of Cu(I)-amidines complexes allows to control the degree of substitution of resulting amidines.
Rousselet,Capdevielle,Maumy
p. 6395 - 6398
(2007/10/02)
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