Contra-thermodynamic Hydrogen Atom Abstraction in the Selective C–H Functionalization of Trialkylamine <i>N</i>-CH<sub>3</sub> Groups
作者:Joshua P. Barham、Matthew P. John、John A. Murphy
DOI:10.1021/jacs.6b09690
日期:2016.11.30
high selectivity over N-CH2R or N-CHR2 groups. The radical cation DABCO+•, prepared in situ by oxidation of DABCO with a triarylaminium salt, effects highly selective and contra-thermodynamic C-Habstraction from N-CH3 groups. The intermediates that result react in situ with organometallic nucleophiles in a single pot, affording novel and highly selective homologation of N-CH3 groups. Chemoselectivity
[EN] CHEMICAL COMPOUNDS<br/>[FR] COMPOSES CHIMIQUES
申请人:ASTRAZENECA AB
公开号:WO2004099178A1
公开(公告)日:2004-11-18
Compounds of formula (I): compositions comprising them, processes for preparing them and their use in medical therapy (for example modulating CCR5 receptor activity in a warm blooded animal).
Hydroformylation of nitrogen-containing cyclic olefins via “in-situ” rhodium-phosphine catalysts
作者:K. Prókai-Tátrai、S. Tőrös、B. Heil
DOI:10.1016/0022-328x(86)80440-5
日期:1986.11
Synthetic approaches to nortropanes and nortrop-6-enes; intramolecular displacement by nitrogen in 7-membered rings
作者:Antoinette Naylor (nee Bathgate)、Nicola Howarth、John R. Malpass
DOI:10.1016/s0040-4020(01)80313-6
日期:1993.1
The synthesis of simple nortropane and nortrop-6-ene derivatives from cyclohepta-1,3-diene is described. The key intermediates are trans-1-amino-4-chloro-cycloheptanes and -cyclohept-2-enes which are derived efficiently from the corresponding cis-amino-alcohols and undergo intramolecular cyclisation. Corresponding derivatisation of cyclohexa- and cycloocta-1,3-dienes is explored and attempts to achieve Pd-catalysed cyclisation of 1-amino-4-acetoxy-derivatives is described. Nitrogen inversion data for selected nortropane derivatives are included.
BATHGATE, ANTOINETTE;MALPASS, JOHN R., TETRAHEDRON LETT., 28,(1987) N 47, 5937-5940