165398-86-7Relevant academic research and scientific papers
Improved preparative method for 1,2-diaryl-3,4-diphosphinidenecyclobutenes and its application to the studies of l,2-bis(arylthienyl)-3,4- diphosphinidenecyclobutenes
Toyota, Kozo,Horikawa, Keiko,Jensen, Rader S.,Omori, Kouhei,Kawasaki, Subaru,Ito, Shigekazu,Yoshifuji, Masaaki,Morita, Noboru
experimental part, p. 1580 - 1586 (2009/07/18)
Sterically protected 1,2-diary1-3,4-diphosphinidenecyclobutenes were prepared from 3-ary1-2-bromo-1-(2,4,6-tri-t-butylphenyl)-3-(trimethylsiloxy)- l-phosphapropene using t-butyllithium and 1,2-dibromoethane, and the properties of the products, such as 1,2
Facile [3+2] dimerization and formal dehydrogenative coupling mode of a cyanophenylphosphaallene
Ito, Shigekazu,Hashino, Sou,Morita, Noboru,Yoshifuji, Masaaki,Hirose, Daisuke,Takahashi, Masae,Kawazoe, Yoshiyuki
, p. 10246 - 10252 (2008/02/13)
Due to a facile head-to-tail [3+2] dimerization, even a sterically demanding group such as the Mes* (2,4,6-tri-tert-butylphenyl) group around the P{double bond, long}C{double bond, long}C moiety did not allow us to isolate 3-(4-cyanophenyl)-1-(
An efficient synthetic method of 1-(2,4,6-Tri-t-butylphenyl)-3-phenyl-1- phosphaallenes [Mes*P=C=CR-Ph; R = H, SiMe3] from Dibromophosphaethene [Mes*P=CBr2] (Mes* = 2,4,6-t-Bu 3C6H2)
Ito, Shigekazu,Sekiguchi, Satoshi,Freytag, Matthias,Yoshifuji, Masaaki
, p. 1142 - 1144 (2007/10/03)
2-Bromo-3-phenyl-1-(2,4,6-tri-t-butylphenyl)-3-trimethylsiloxy-1-phospha-1- propene reacted with t-butyllithium and chlorotrimethylsilane to afford 3-phenyl-1-(2,4,6-tri-t-butylphenyl)-1-phosphaallene and/or 3-phenyl-3- trimethylsilyl-1-(2,4,6-tri-t-butyl
Formation and electrochemical properties of a 1,4-diphosphafulvene including formal dimerization of phosphaallene
Ito, Shigekazu,Sekiguchi, Satoshi,Yoshifuji, Masaaki
, p. 4181 - 4184 (2007/10/03)
Reactions of sterically protected 2-bromo-3-phenyl-1-phosphapropenes with bases such as tertbutyllithium and potassium tert-butoxide successfully afforded a bulky 1,4-diphosphafulvene (Mes* = 2,4,6-tBu3C 6H2) through a nov
Low Coordinated Phosphorus Compounds, 62. - Valence Isomerisation of λ3-Monophosphahexenynes
Appel, Rolf,Kochta, Joachim,Winkhaus, Volker
, p. 631 - 636 (2007/10/02)
-Phospha-carbon Cope rearrangement of monophosphahexadienes and of a monophosphahexenyne has been observed for the first time.The phosphaallyl systems 3 have been obtained by reaction of chlorophosphane 1 with crotyl (2a), allyl (2b), and cinnamyl (2c) Grignard reagents, whereas the phosphapropargyl system 7 has been prepared by reaction of chloroethynylphosphane 6 with 2a. 6 reacts with 2c to yield the monophosphahexenyne 9, which shows no rearrangement even at high temperatures.Radical chleavage of the cinnamyl group of 9 forms the diphosphane 10, which undergoes a cyclisation to the cyclobutene 11.
