نتایج جستجو برای: phosphite ester

تعداد نتایج: 37751  

2013

The new 7r-donor bis-(phenylenedithio)-tetrathiafulvalene (5), synthesized via phosphite coupling o f 2-oxo-l,3-dithiolo-[4,5b][l,4]-benzodithiin (4), has been prepared in 5 steps start­ ing from 1,2-dimercaptobenzene and chloroacetyl chloride. Spectroscopic and electrochemical data point to a close similarity o f 5 and dibenzo-tetrathiafulvalene (DB-TTF). 5 forms a highly conducting radical-ca...

2001
Sabine Laschat Horst Kunz

The stereoselective synthesis of diethyl (S)or (R)-IX-[( O-pivaloylhexapyranosyl)amino]benzylphosphonates is achieved via Lewis acid catalyzed addition of diethyl phosphite to O-pivaloylated Nbenzylidene-{3-D-galactosylamine or N-benzylidene-IX-D-arabinopyranosylamine. The process can also be performed by a one-pot procedure selectively giving (S)-aminophosphonic acid derivatives from galactosy...

2010
Omar bin Shawkataly Syed Sauban Ghani Rajabathar Jothiramalingam Chin Sing Yeap Hoong-Kun Fun

In the title triangulo-triruthenium compound, [Ru(3)(C(6)H(12)Cl(3)O(3)P)(CO)(11)], one equatorial carbonyl ligand is substituted by a monodentate phosphite ligand, leaving one equatorial and two axial carbonyl ligands on one Ru atom. The remaining two Ru atoms each carry two equatorial and two axial terminal carbonyl ligands. In the crystal structure, the mol-ecules are linked into a one-dimen...

Journal: :Acta Crystallographica Section C Crystal Structure Communications 2004

Journal: :Bulletin of the Chemical Society of Japan 1966

Journal: :Journal of Polymer Science Part A-1: Polymer Chemistry 1967

Journal: :Acta Crystallographica Section E Crystallographic Communications 2018

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2008
shahram moradi fatemeh azarakhshi akbar masoumi shahi

protonation of the reactive intermediate produced in the  reaction between trimethyl phosphite and dimethyl acetylenedicarboxylate or diethyl acetylenedicarboxylate by resorcinol, 5-methylresorcinol, 2,5-dihydroxyacetophenone, 4-chloro-2-methylphenol, 4-chloro-3,5-dimethy-lphenol, 4-hydroxypyridine, 2-hydroxypyridine, 3-hydroxypyridine, or 8-hydroxyquinoline leads to vinylphosphonium salts, whi...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید