A Deep Cavitand Provides a Structured Environment for the Menschutkin Reaction
摘要:
We report that a synthetic, vase-shaped host molecule forms complexes with quinuclidine and accelerates the Menschutkin reaction in the nanoenvironment that the host provides. Kinetic simulation is used to determine rate constants for reactions of the complex, and these are compared to control reactions in the absence of the host. The efficacy of the host in effecting this supramolecular acceleration is dependent on the structures of the alkylating agent and its leaving group.
Crossley, Maxwell J.; Gorjian, Sargon; Sternhell, Sever, Australian Journal of Chemistry, 1994, vol. 47, # 4, p. 723 - 738
作者:Crossley, Maxwell J.、Gorjian, Sargon、Sternhell, Sever、Tansey, Kerrie M.
DOI:——
日期:——
A Deep Cavitand Provides a Structured Environment for the Menschutkin Reaction
作者:Byron W. Purse、Arnaud Gissot、Julius Rebek
DOI:10.1021/ja052877+
日期:2005.8.1
We report that a synthetic, vase-shaped host molecule forms complexes with quinuclidine and accelerates the Menschutkin reaction in the nanoenvironment that the host provides. Kinetic simulation is used to determine rate constants for reactions of the complex, and these are compared to control reactions in the absence of the host. The efficacy of the host in effecting this supramolecular acceleration is dependent on the structures of the alkylating agent and its leaving group.
Regioselective synthesis of the 4,5-dialkoxy-2-nitroanilines bearing two different alkoxy substituents
chemoselective synthesis of 4,5-dialkoxy-2-nitroanilines substituted with two alkoxys at C-4 and C-5. Here we show the optimization protocol of the transetherification reaction used to synthesize 20 newcompounds with good to excellent yields (50–92%). We describe a simple and efficient one-step procedure that can be applied to obtain a significant number of pharmacologicallyactivecompounds, including