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3. Stereoselective Thermal Addition of RP and/or SP‐Menthyl‐Deriving Secondary Phosphine Oxides to Active Alkynes, the Mechanism, Stereochemistry and Generation of P,C‐Chirogenic Bis‐Phosphine Derivatives.

Author

Yan, Bing‐Xia, Zheng, Hong‐Xing, Ye, Jing‐Jing, Qiu, Mao‐Ran, Zhang, Yu, Zhao, Chang‐Qiu, and Li, Qiang

Subjects
PHOSPHINE oxides, STEREOCHEMISTRY, KINETIC control, ALKYNES, THERMODYNAMIC control
Abstract

The additions of RP‐1 or SP‐1 to alkynyl esters stereo selectively afforded bis‐phosphinylated derivatives having up to four C‐ and P‐chirogenic centers. The stereochemistry was controlled by kinetic and thermodynamic processes at lower and higher temperature, respectively. At 100 °C, the bis‐adducts were obtained in up to 99% yield and >99 : 1 d.r. [ABSTRACT FROM AUTHOR]

Published
2020
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