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Phosphine-mediated Highly Enantioselective Spirocyclization with Ketimines as Substrates.

Angewandte Chemie, 2016
Phosphine-catalyzed enantioselective annulation reactions involving ketimines are a daunting synthetic challenge owing to the intrinsic low reactivity of ketimine substrates. A highly enantioselective [3+2] cycloaddition reaction that makes use of isatin-
Xiaoyu Han +4 more
semanticscholar +1 more source

The Estimation of Phosphine in Air

American Industrial Hygiene Association Journal, 1963
Abstract A simple field method has been developed for the estimation of phosphine in the atmosphere of grain silos and other fumigation areas. The procedure uses silver nitrate impregnated papers as a means of visual detection. Quantitative estimation as low as 0.05 ppm is by color comparison with standard stains.
A. T. Jones, J. G. Hughes
openaire +3 more sources

Phosphine-Catalyzed Enantioselective [4 + 2] Annulation of o-Quinone Methides with Allene Ketones.

Organic Letters, 2017
A phosphine-catalyzed highly enantioselective [4 + 2] annulation between ortho-quinone methides and allene ketones has been developed. The reported method led to the formation of chromane derivatives in high yields and excellent enantioselectivity.
Zhen Wang, Tianli Wang, W. Yao, Yixin Lu
semanticscholar +1 more source

Enantioselective Construction of All‐Carbon Quaternary Stereogenic Centers by Using Phosphine Catalysis

, 2017
Asymmetric construction of all-carbon quaternary stereogenic centers represents one of the most challenging tasks in organic synthesis, and has drawn continuous attention from synthetic community.
Huilin Li, Yixin Lu
semanticscholar +1 more source

Some Phosphines, Phosphine Sulfides, and Phosphine Selenides.

Journal of Chemical & Engineering Data, 1963
Ralph A. Zingaro, Raymond E. McGlothin
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ChemInform Abstract: An Overview of the Synthesis of Phosphinates and Phosphinic Amides.