亚胺桥接的轮烷是一种新型的轮烷,其中轴和大环通过亚胺键连接。我们以前曾报道过,在亚胺桥接的轮烷中5,大环的穿梭运动可以通过改变温度来控制。在这项研究中,我们调查车轴和大环化合物的结构如何影响亚胺桥接轮烷的结构之间以及亚胺桥接轮烷动态平衡5和[2]轮烷7通过使用车轴的各种组合(1分甲,乙),大环(2 a – e)和边站(XYL和TEG)。在穿线过程中,大环的柔性和苯胺部分对位的取代基会影响带线亚胺的制备。亚胺桥键和大环系链的大小会影响酸性条件下亚胺键的水解。
[EN] SYNTHESIS OF MORPHINE AND RELATED DERIVATIVES<br/>[FR] SYNTHÈSE DE LA MORPHINE ET DE DÉRIVÉS ASSOCIÉS
申请人:UNIV TEXAS
公开号:WO2010132570A1
公开(公告)日:2010-11-18
The present invention relates to methods for the synthesis of galanthamine, morphine, intermediates, salts and derivatives thereof, wherein the starting compound is biphenyl.
Molecular Gyroscope with a <i>trans</i>-Cyclohexane-1,4-diimine Rotor Unit: Isolation and Characterization of a Geometric Isomer as a Formal Intermediate of Hindered Rotation
Condensation reactions of macrocyclic diamines 1 and cyclohexane-1,4-dicarbaldehydes 2 with the substituents at 1,4-positions gave a series of macrocage molecules that can be considered molecular g...
申请人:Board of Regents the University of Texas System
公开号:US08293927B2
公开(公告)日:2012-10-23
The present invention relates to methods for the synthesis of morphine, intermediates, salts and derivatives thereof. In preferred embodiments, the invention relates to methods for improving the efficiency and overall yield of said morphine, morphine related derivatives and intermediates thereof. In further embodiments, the invention relates to methods for improving the efficiency and overall yield of galanthamine and intermediates thereof.
The present invention relates to methods for the synthesis of morphine, intermediates, salts and derivatives thereof. In preferred embodiments, the invention relates to methods for improving the efficiency and overall yield of said morphine, morphine related derivatives and intermediates thereof. In further embodiments, the invention relates to methods for improving the efficiency and overall yield of galanthamine and intermediates thereof.
CF<sub>3</sub>SO<sub>2</sub>Na-Mediated Five-Component Carbonylation of Triarylboroxines with TMSCF<sub>3</sub> and THF/LiOH/NaI to Give Aroyloxyalkyl Iodides
efficient and transition-metal-free multicomponent coupling reaction for the synthesis of aroyloxyl alkyliodides. In the reaction among 2,4,6-triarylboroxines, THF, TMSCF3, LiOH, and NaI, five-component reactions could be precisely controlled by modulating CF3SO2Na, supplying one type of aroyloxyl alkyliodides in moderate to high yields. The reaction exhibits good functional group tolerance and a wide substrate
在此,我们开发了一种高效且不含过渡金属的多组分偶联反应,用于合成芳酰氧基烷基碘。在2,4,6-三芳基环硼氧烷、THF、TMSCF 3 、LiOH和NaI的反应中,通过调节CF 3 SO 2 Na可以精确控制五组分反应,提供一种中高产率的芳酰氧基烷基碘. 该反应表现出良好的官能团耐受性和广泛的底物范围,可以很容易地转化为其他有用的化合物。该机制是在控制实验的基础上提出的