4963-94-4Relevant academic research and scientific papers
Intramolecular nucleophilic substitution of ω-haloalkylphosphine derivatives
Pawe?, Wo?nicki,Korzeniowska, Ewelina,Stankevic, Marek
, p. 10271 - 10296 (2018/02/27)
ω-Haloalkylphosphine derivatives undergo the intramolecular nucleophilic substitution reaction upon treatment with a strong base, yielding either cycloalkylphosphine derivatives or heterocyclic phosphine derivatives. The selectivity of the cyclization of
Simple and general synthesis of new 11H-11λ5-dibenzo[c,f][1,2,5]dithiaphosphepine derivatives
Baccolini, Graziano,Boga, Carla,Guizzardi, Giulia,Ponzano, Stefano
, p. 9299 - 9302 (2007/10/03)
Treatment at room temperature of benzothiadiphosphole 1 with bis-Grignard 2 gives intermediate A, which after 3 h gives intermediate A′. Subsequent addition of RMgX or sodium alcoholate and final treatment with S8 and water affords the title compounds 5 in good yields. From the reaction mixture it is also possible to obtain the cyclic phosphine sulfide 6 or its dimeric form 7.
A one-pot synthesis of 1-substituted cyclic phosphine sulfides by simultaneous addition of bis- and mono-grignard reagents to a new efficient phosphorus donating reagent
Baccolini,Boga,Negri
, p. 1685 - 1687 (2007/10/03)
The synthesis of the reported cyclic phosphine sulfides (4, 5, 6) is carried out in good yields in a one-pot reaction with simultaneous addition of the three reagents (1, BrMgCH2(CH2)(n)CH2MgBr, RMgBr) and final treatment with sulfur. The new phosphorus donating reagent benzothiadiphosphole 1 is an inexpensive, facile to prepare, and air-insensitive solid.
