Selective C(sp)-P Cross-Coupling of Alkenylsulfonium Salts with P(O)H Compounds: Divergent Synthesis of Alkenylphosphorus Compounds.

Herein, we report a both regioselective and stereoselective method for the formation of C(sp)-P bonds using alkenylsulfonium salts and >P(O)-H compounds. By employing a palladium catalyst or KCO, a variety of ()-alkenylphosphorus compounds and terminal alkenylphosphorus compounds were successfully synthesized with high selectivity. Notably, trisubstituted ()-alkenylphosphorus compounds were synthesized for the first time under metal-free conditions.

Local polarization redistribution in ZnInS for the enhancing synergetic piezo-photocatalytic overall water splitting.

Piezo-photocatalytic water (deuterium oxide) decomposition is a promising strategy for realizing renewable energy, but the manipulation of the polar center remains a big challenge. This study uses a simple low-temperature hydrothermal process to successfully manufacture ZnInS (m = 1-3) (ZnInS, ZnInS and ZnInS). Incorporating both experimental and theoretical analyses, the structural contraction and local polarization of the Zn-S bond in ZnInS enhance the piezoelectric response and surface charge accumulation, which facilitate charge transfer and reduce the activation energy of water.

Reductive Coupling of P(O)-H Compounds and Aldehydes for the General Synthesis of Phosphines and Phosphine Oxides.

A novel strategy for the selective construction of a C(sp)-P(III) or -P(V) bond from >P(O)-H compounds and aldehydes is disclosed. By using the HPO/I system, various secondary phosphine oxides could react with both aromatic and aliphatic aldehydes to afford valuable phosphines (isolated as sulfides) and phosphine oxides in good yields. This method features a wide substrate scope and simple reaction conditions and avoids the use of toxic halides and metals.