82925-88-0Relevant academic research and scientific papers
A flexible, convergent approach to polycyclic indole structures: Formal synthesis of (±)-mersicarpine
Blechy, Aurellen,Zard, Samir Z.
scheme or table, p. 2800 - 2803 (2009/11/30)
The formal synthesis of (±)-mersicarpine was achieved using an lntermolecular radical addition-radical cyclization cascade. This key reaction represents a flexible, convergent route to numerous polycyclic indole derivatives.
Modulating the propeller-like shape of a tripodal C(CH2PPh2)3 fragment by the size of the substituent at the pivotal carbon atom in macrobicyclic tri-λ5-phosphazenes
Alajarín, Mateo,López-Leonardo, Carmen,Berná, José
, p. 4450 - 4458 (2008/02/03)
The chiral macrobicyclic tri-λ5-phosphazenes formed by tripod-tripod coupling of tris(3-azidobenzyl)amines and 1,1,1-tris[(diphenylphosphino)methyl]methanes present helical topologies as a result of combining two propeller-shaped tripodal fragm
New trigonal tris(phosphine oxides)
Pisareva,Petrovskii,Lyssenko,Antipin,Nifant'ev
, p. 2008 - 2012 (2007/10/03)
The reaction of 1,1,1-tris(chloromethyl)propane with diphenylphosphine under phase-transfer conditions afforded 1,1,1-tris(diphenylphosphinomethyl) propane, whose oxidation gave a previously unknown representative of trigonal tris(phosphine oxides), viz.,
KINETICS OF THE TRANSFORMATION OF 5-R-5-CHLOROMETHYL-2-THIA-2-OXO-1,3-DIOXANES TO 1,3-DICHLORO-2-R-2-CHLOROMETHYLPROPANES
Bolotov, A. S.,V'yunov, K. A.
, p. 187 - 191 (2007/10/02)
Investigation of the kinetics of the formation of 1,3-dichloro-2-R-2-chloromethylpropanes from 5-R-5-chloromethyl-2-thia-2-oxo-1,3-dioxane by the action of an equimolecular mixture of thionyl chloride and dimethylformamide (the Vilsmeier-Haack reagent) led to the conclusion that the low activation energies and the large negative entropy values indicate the participation of a stable intermediate in the investigated complex many-stage reaction.
PRODUCTION OF CYCLIC SULFITES AND THEIR TRANSFORMATION INTO SUBSTITUTED TRI(CHLOROMETHYL)METHANES
Bolotov, A. A.,Rodin, A. A.,V'yunov, K. A.,Ginak, A. I.,Sarkisov, Yu. S.
, p. 1812 - 1819 (2007/10/02)
The production of cyclic sulfites from trihydric alcohols and their conversion into chlorides by the action of DMFA-SOCl2 complex are described.By PMR and IR spectroscopy it was shown that cyclic sulfites exist preferentially in the chair conformation with the axial orientation of the S=O bond.It was established that the chlorides are formed in two parallel paths, i.e. directly from trihydric alcohols and their cyclic sulfites.
