Heterocycles from phosphonium-iodonium ylides. Photochemical synthesis of lambda(5)-phosphinolines.
A photochemical reaction of mixed phosphonium-iodonium ylides with acetylenes yielding lambda(5)-phosphinolines, a rare class of phosphorus heterocycles hardly accessible by other methods, was found. The yields of lambda(5)-phosphinolines vary from 35% to 80%. The structures of two phosphinolines were established by single-crystal X-ray diffraction. The X-ray diffraction and NMR spectra data indicate the superposition of ylidic and aromatic structures for phosphinolines.
Matveeva
Elena D
ED
Department of Chemistry, Moscow State Lomonosov University, Moscow, Lenin Hills, 1, Russian Federation 119992. matveeva@org.chem.msu.ru
Podrugina
Tatyana A
TA
Pavlova
Anna S
AS
Mironov
Andrey V
AV
Borisenko
Anatoliy A
AA
Gleiter
Rolf
R
Zefirov
Nikolay S
NS