804563-29-9Relevant academic research and scientific papers
Synthesis of phosphorus(V)-stabilized geminal dianions. the cases of mixed P=X/PBH3 (X = S, O) and P=S/SiMe3 derivatives
Heuclin, Hadrien,Fustier-Boutignon, Marie,Ho, Samuel Ying-Fu,Goff, Xavier-Frederic Le,Carenco, Sophie,So, Cheuk-Wai,Mezailles, Nicolas
, p. 498 - 508 (2013)
The monodeprotonation of [CH2(PPh2BH 3)(PPh2=E)] (E = S (6), O (7)) afforded [CH(PPh 2BH3)(PPh2=E)]- (E = S (6 -), O (7-)), whose structures were confirmed by X-ray crystallography. The kinetics of the second deprotonation appeared to be crucial in efficient synthesis of the corresponding dianions. Thus, the double deprotonation of 6 only led to 62-; the analogous reaction with 7 was slower and resulted only in the partial formation of 72-. Double deprotonation of the compound [CH2(SiMe3)(PPh 2=S)] (8) also resulted in the partial formation of [C(SiMe 3)(PPh2=S)]2- (82-), whose structure was confirmed by X-ray crystallography. The rare monomeric Mg carbene compound [MgC(PPh2BH3)(PPh2=S)] (9) was obtained by the reaction of 6 with Mg(nBu)2. The X-ray structure of 9 is presented.
