Synthesis and Double Olefin Extrusion of 2, 2, 6, 6-Tetraaryl-l, 5-Dioxa-4λ5-Phosphaspiro [3.3] Heptanes
T Kawashima, R Okazaki, R Okazaki
Index: Kawashima, Takayuki; Okazaki, Rei; Okazaki, Renji Phosphorus, Sulfur and Silicon and Related Elements, 1997 , vol. 124, p. 379 - 386
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Citation Number: 8
Abstract
The title compounds were synthesized by cyclization and dehydration of the corresponding bis (β-hydroxyalkyl) phosphine oxides with Appel's reagent. Since these compounds were very moisture sensitive to hydrolyze to the starting bis (β-hydroxyalkyl) phosphine oxides except for tetrakis (4-nitrophenyl) derivative, their in-situ generation and thermolysis were carried out to give two molar equivalents of the corresponding olefins in good yield in ...
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