A Very Simple Synthesis of α-Substituted β-Ketoamides
作者:J. Cossy、D. Belotti、A. Thellend、J. P. Pete
DOI:10.1055/s-1988-27686
日期:——
α-Substituted β-ketoamides were prepared in good yields by irradiation of a solution of 2-diazo-1,3-diketones, at 254 nm, in the presence of primary or secondary amines.
Photoreductive cyclization of N,N-dialkyl β-oxoamides: Formation of six-membered ring lactams
作者:J. Cossy、D. Beloitti、J.P. Pete
DOI:10.1016/s0040-4039(00)96559-6
日期:1987.1
Bicyclic six-membered ring lactams were produced by irradiation of N,N-unsaturated dialkyl β-oxoamides in the presence of triethylamine.
双环六元环内酰胺是通过在三乙胺存在下照射N,N-不饱和二烷基β-氧代酰胺而制得的。
COSSY, J.;BELOTTI, D.;PETE, J. P., TETRAHEDRON LETT., 28,(1987) N 39, 4545-4546
作者:COSSY, J.、BELOTTI, D.、PETE, J. P.
DOI:——
日期:——
Photoreductive cyclization of N,N-dialkyl-β-oxoamides: synthesis of piperidines and δ-lactams
作者:Janine Cossy、Damien Belotti、Nguyen Kim Cuong、Claude Chassagnard
DOI:10.1016/s0040-4020(01)87244-6
日期:1993.8
The photoreductive cyclization of N,N-unsaturated dialkyl-beta-oxoamides produced delta-lactams in good yields. On the contrary the photoreductive cyclization of N,N-unsaturated dialkyl-beta-aminoketones produced substituted piperidines in poor yields.
Continuous Flow Generation of Acylketene Intermediates via Nitrogen Extrusion
作者:Harry R. Smallman、Guilherme A. Brancaglion、Julio C. Pastre、Duncan L. Browne
DOI:10.1021/acs.joc.2c01486
日期:2022.9.16
of acylketene precursors through extrusion of nitrogen gas is reported. Key to the development of a suitable continuous protocol is the balance of reaction concentration against pressure in the flow reactor. The resulting process enables access to intercepted acylketene scaffolds using volatile amine nucleophiles and has been demonstrated on the gram scale. Thermal gravimetric analysis was used to