Unprecedented reductive dealkoxylation of aryl alkyl ethers and intramolecular C–C coupling of 2,2′-dialkoxystilbenes with low valent titanium: one-pot synthesis of phenanthrenes
Dramatic Influence of Nitrogen Heterocycles on the Activity of Low-Valent Titanium Reagent: An Improved One-Pot Synthesis of Phenanthrenes
作者:Suresh M Kadam、Sandip K. Nayak、Asoke Banerji
DOI:10.1080/00397919508010799
日期:1995.1
A novel low-valent titanium (LVT) induced one-pot synthesis of phenanthrenes (25-38% yield) from ortho-alkoxy aromatic aldehydes/ketones was reported by us earlier. Activity of LVT complex could be modulated rationally by using catalytic amount of pyridine. Use of this LVT-pyridine reagent system improved the yields of phenanthrenes (3) by two folds.