Heating of a 9-anthryldiphosphene kinetically stabilized by 2,6-bis[bis(trimethylsilyl)methyl]-4-[tris(trimethylsilyl)methyl]phenyl substituent (denoted as Bbt) group, BbtP ═ P(9-Anth) (9-Anth = 9-anthryl), with (n-Bu)3P═Te afforded 1,2-bis(9-Anth)-3-Bbt-triphosphirane in moderate yield. The structural parameters and physical properties of the isolated triphosphirane were determined by spectroscopic and X-ray crystallographic analyses.
Dedicated to Professor Marian Mikołajczyk from the CBMiM PAN in Łódź, Poland, on the occasion of his 70th birthday.
This work was partially supported by Grants-in-Aid for Creative Scientific Research (No. 17GS0207), Science Research on Priority Areas (No. 19027024, “Synergy of Elements”), Young Scientist (B) (Nos. 18750030), and the Global COE Program (B09, “Integrated Material Science”) from Ministry of Education, Culture, Sports, Science and Technology, Japan. T.S. thanks for the financial support from Daiichi Pharmaceutical Co., Ltd.
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