作者:Linkun Miao、Amir Yeganeh-Salman、Jason Yeung、Douglas W. Stephan
DOI:10.1039/d2dt02855g
日期:——
derivative where X = O3SCF3 provides access to a methylene phosphonium cation. The coordinated triflate anion can be replaced by Et3PO and dimethylaminopyridine (DMAP). In addition, the cation reacts with the olefins R2CCH2 (R = Ph, Me) and PhMeCCH2. While Ph2CCH2 was shown to give the species [Ph2(Ph2CCH)PCH2PPh2Me][O3SCF3]2 with a pendant vinyl group, reactions with methyl substituted olefins undergo additional
使卤代鏻阳离子 [Ph 2 P(X)Me] + (X = F, Cl)去质子化的努力产生了 [Ph 2 (X)PC(H)PPh 2 Me][X'] 形式的物质。X = O 3 SCF 3的衍生物提供了获得亚甲基鏻阳离子的途径。配位的三氟甲磺酸根阴离子可以被 Et 3 PO 和二甲氨基吡啶 (DMAP) 取代。此外,阳离子与烯烃R 2 C CH 2 (R = Ph,Me)和PhMeC CH 2反应。虽然 Ph 2 C CH 2显示给物种 [Ph 2 (Ph 2CCH)PCH 2 PPh 2 Me][O 3 SCF 3 ] 2带有一个乙烯基侧基,与甲基取代的烯烃反应发生额外的异构化形成[Ph 2 (RCH 2 CCH 2 )PCH 2 PPh 2 Me][O 3 SCF 3 ] 2 (R = Ph, Me) 具有侧链烯丙基部分。