ChemInform Abstract: Synthesis of Triaryl Cyanurates Catalyzed by Polyethylene Glycol in a Two-Phase System: Phase-Transfer Catalysis.

ChemInform ◽  
2010 ◽  
Vol 27 (17) ◽  
pp. no-no
Author(s):  
B. P. KAVITAKE ◽  
S. V. PATIL ◽  
M. M. SALUNKHE
Keyword(s):  
Polyethylene Glycol ◽  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Phase System ◽  
Two Phase ◽  
System Phase

Synthesis of Triaryl Cyanurates Catalysed by Polyethylene Glycol in a Two-Phase System: Phase Transfer Catalysis

2010 ◽  
Vol 104 (12) ◽  
pp. 675-677 ◽  
Author(s):  
Bhanudas P. Kavitake ◽  
Sucheta V. Patil ◽  
Manikrao M. Salunkhe ◽  
Prakash P. Wadgaonkar
Keyword(s):  
Polyethylene Glycol ◽  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Phase System ◽  
Two Phase ◽  
System Phase

Rapid and simple dansylation of phenolic steroids using a two-phase system and phase transfer catalysis

1988 ◽  
Vol 436 ◽  
pp. 429-436 ◽  
Author(s):  
C. De Ruiter ◽  
R.R. Otten ◽  
U.A.Th. Brinkman ◽  
R.W. Frei
Keyword(s):  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Phase System ◽  
Two Phase

Syntheses of glycosyl phosphates by phase transfer catalysis

1991 ◽  
Vol 69 (9) ◽  
pp. 1462-1467 ◽  
Author(s):  
René Roy ◽  
François D. Tropper ◽  
Chantal Grand-Maître
Keyword(s):  
Key Words ◽  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Phase System ◽  
Hydrogen Sulfate ◽  
Two Phase ◽  
Glycosyl Phosphates ◽  
Glycosyl Phosphate ◽  
Tetrabutylammonium Hydrogen Sulfate ◽  
Complete Inversion

The peracetylated glycosyl bromides of D-glucose (1), D-galactose (2), and D-lactose (5) were treated with dibenzyl phosphate in a catalytic two-phase system using tetrabutylammonium hydrogen sulfate as catalyst. The reactions proceeded by complete inversion at the anomeric centers and afforded a new stereospecific entry into 1,2-trans-β-D-glycosyl phosphates of peracetylated D-glucose (3), D-galactose (4), and the disaccharide D-lactose (6) in 83, 73, and 83% yields respectively. Interestingly, the glycosyl chloride 7 furnished the oxazoline 9 rather than the expected glycosyl phosphate 8. Key words: phase transfer catalysis, glycosyl phosphates, phosphotriesters.

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