Palladium-Catalyzed Oxidative Carbonylation for the Synthesis of Symmetrical Diaryl Ketones at Atmospheric CO Pressure
作者:Dong Xue、Jianliang Xiao、Yang Li、Wei Lu、Chao Wang、Zhao-Tie Liu
DOI:10.1055/s-0033-1340957
日期:——
A mild and efficient synthesis of symmetrical diaryl ketones by palladium-catalyzed oxidative carbonylation of arylboronic acids with carbon monoxide at atmosphericpressure is reported.
报道了在常压下通过钯催化芳基硼酸与一氧化碳的氧化羰基化反应温和有效地合成对称二芳基酮。
Synthetic applications of fluorinated phenyllithiums preparation of fluorinated α-methylstyrenes, benzhydrols, benzophenones and aryltrimethylsilanes
作者:Thomas David Yarwood、Anthony John Waring、Paul Leslie Coe
DOI:10.1016/0022-1139(96)03424-0
日期:1996.6
Regioselective preparations of a number of fluorinated phenyllithiums have recently been reported, which in some cases also contain one or more bromine substituents. These have now been applied to the synthesis of the corresponding halogenated 2-arylpropenes (α-methyl- styrenes), benzhydrols, trifluoromethylbenzhydrols, benzophenones and aryltrimethylsilanes.
This invention relates to certain novel compounds and derivatives thereof, their synthesis, and their use as selective alpha-1a adrenergic receptor antagonists. One application of these compounds is in the treatment of benign prostatic hyperplasia. These compounds are selective in their ability to relax smooth muscle tissue enriched in the alpha 1a receptor subtype without at the same time inducing orthostatic hypotension. One such tissue is found surrounding the urethral lining. Therefore, one utility of the instant compounds is to provide acute relief to males suffering from benign prostatic hyperplasia, by permitting less hindered urine flow. Another utility of the instant compounds is provided by combination with a human 5-alpha reductase inhibitory compound, such that both acute and chronic relief from the effects of benign prostatic hyperplasia are achieved.