4632-37-5Relevant academic research and scientific papers
Radical synthesis of trialkyl, triaryl, trisilyl and tristannyl phosphines from P4
Cossairt, Brandi M.,Cummins, Christopher C.
, p. 1533 - 1536 (2010/10/03)
A reaction scheme has been devised according to 3 RX + 3 Ti(iii) + 0.25 P4 → PR3 + 3 XTi(iv), wherein RX = PhBr, CyBr, Me3SiI or Ph3SnCl, with contrasting results in the case of more hindered RX. The scheme accomplishes the direct radical functionalization of white phosphorus without the intermediacy of PCl3.
A study of the ring-opening of lactides and related cyclic esters by Ph2SnX2 and Ph3SnX compounds (X = NMe 2, OR)
Chisholm, Malcolm H.,Delbridge, Ewan E.
, p. 1167 - 1176 (2007/10/03)
Ph3SnX reacts with L-lactide in the order X = NMe 2～OMe ? OPri > OBut in the initial ring-opening event. The rate of ring-opening of methyl substituted 1,4-dioxane-2,5-diones decreases with methyl substitution and ring-opening of 3,3,6,6-tetramethyl-1,4-dioxane-2,5-dione is not observed. From studies of the reaction between Ph3SnOPri and L-lactide the activation parameters ΔH≠ = 13(1) kcal mol-1 and ΔS≠ = -37(3) eu have been determined. Ph 3SnNMe2 reacts with cyclic esters and propylene carbonate at low temperatures to give isolable ring-opened products. The compound Ph 3Sn[OCHMeC(O)OCHMeC(O)X] (where X = NMe2, OMe) are labile in solution at room temperature, yielding Ph3Sn[OCHMeC(O)X] and Ph3Sn[OCHMeC(O)]nX, where n ≥ 3, by transesterification, along with other minor products due to phenyl/OR group transfer (i.e., Ph4Sn). Ph2Sn(NMe2) 2 and L-lactide react to give Ph2Sn[OCHMeC(O)NMe 2]2 by ring-opening of L-lactide followed by rapid amidation. A related compound, Ph2Sn[OCHMeC(O)OPri] 2, is also formed in the reaction between Ph2Sn(OPr i)2 and L-lactide but is more labile toward further ring-opening of L-lactide.
DIORGANOSTYRYLZINNDIORGANOPHOSPHINE UND IHRE TRICARBONYLNICKEL-KOMPLEXE
Schumann, H.,Rodewald, G.,Lefferts, J. L.,Zuckerman, J. J.
, p. 53 - 64 (2007/10/02)
Diorganostyryltin chlorides R2StySnCl (R = C4H9, p-CH3C6H4, R2 = (CH2)5) react with trimethylsilyl di-t-butylphosphine or trimethylsilyl diphenylphosphine to form trimethylchlorosilane and the corresponding diorganostyryltindiorganophosphines, which can b
