Derivatization of Tris(trimethylsilyl)heptaphosphane

Heptaphosphanortricyclenes with Oligosilyl Substituents: Syntheses and Reactions

“…At room temperature, both the lithium and potassium salts are stable in solution for days. [32] As the 31 P NMR spectra are very similar to those of 1a, no pictures are presented here. In the presence of 18-crown-6, needle-like crystals of 2a could be grown from toluene.…”

Nitrogen, phosphorus, arsenic, antimony and bismuth

“…Reaction of P 7 (SiMe 3 ) 3 with LiO t Bu in thf or KO t Bu (in thf or toluene/DME 4 : 1) results in the formation of different isomers of [P 7 (SiMe 3 ) 3 ] À . 63 In contrast reaction of P 7 (SiMe 3 ) 3 with a two-fold excess of KO t Bu in toluene solution affords K 2 P 16 .…”

Preparation and Structural Variety of Neutral Heptaphospha-Nortricyclane Derivatives of Zinc and the Coinage Metals

“…Attention has also been devoted to the derivatization and functionalization of the P 7 skeleton, yielding the neutral molecular counterparts of R 3 P 7 . Early research in the field led to the isolation of organo-, tetrel-, and pnictogen-substituted cages [7][8][9][10][11][12]. Later, transition-metal-capped cycloheptaphosphanes were also reported [13][14][15].…”

“…Silyl-substituted P 7 -nortricyclane cages have already been studied at our institute in the past [7,8,10]. Hassler was able to show that treatment of (tms) 3 P 7 (first isolated by Fritz in the 1970s) [17] with hyp-Cl (hyp = 'hypersilyl' = Si(SiMe 3 ) 3 ) leads to a silyl exchange reaction, yielding the heteroleptic derivative (hyp) 2 (tms)P 7 [8]. Similar methodologies have also been used for the preparation of (Ph 3 Si) 3 P 7 and (Me 3 Pb) 3 P 7 from (tms) 3 P 7 [9].…”

“…Similar methodologies have also been used for the preparation of (Ph 3 Si) 3 P 7 and (Me 3 Pb) 3 P 7 from (tms) 3 P 7 [9]. reaction, yielding the heteroleptic derivative (hyp)2(tms)P7 [8]. Similar methodologies have also been used for the preparation of (Ph3Si)3P7 and (Me3Pb)3P7 from (tms)3P7 [9].…”