A detailed investigation of the acid-catalysed formation of acetals from acetone and D-glucitol
作者:T.G. Bonner、E.J. Bourne、R.F.J. Cole、D. Lewis
DOI:10.1016/s0008-6215(00)81727-9
日期:1972.1
Abstract The acid-catalysed acetonation of D -glucitol has been studied in detail. The true complexity of the reaction, giving the 1,2- and 3,4-monoacetals, the 1,2:3,4-, 3,4:5,6-, and 1,2:5,6-diacetals, and the 1,2:3,4:5,6-triacetal, has been shown. These studies have been carried out mainly by gas-liquid chromatographic techniques, and have shown that, with acetone, the primary hydroxyl group at
Acid-catalysed formation of diacetals from butyraldehyde and certain D-glucitol derivatives
作者:Trevor G. Bonner、David Lewis、Levent Yüceer
DOI:10.1016/s0008-6215(00)83130-4
日期:1976.7
Abstract Acid-catalysed dibutyiidenation of 1-deoxy- D -glucitol and 3- O -methyl- D -glucitol yields the 2,4:5,6-diacetals as the main, thermodynamically controlled products, and 2-deoxy- D - arabino -hexitol ( i.e. , 2-deoxy- D -glucitol) yields the 1,3:4,6-diacetal as the main, thermodynamically controlled product.
Palladium chloride/tetraphenylphosphonium bromide intercalated clay: new catalyst for cross-coupling of aryl halides with arylboronic acids
作者:Rajender S. Varma、Kannan P. Naicker
DOI:10.1016/s0040-4039(98)02403-4
日期:1999.1
A facile method for the preparation of biaryl compounds is described from readily accessible aryl halides and arylboronic acids using palladium chloride/tetraphenylphosphonium bromide intercalated clay as a new catalyst. (C) 1998 Elsevier Science Ltd. All rights reserved.
83. Heterocyclic organoboron compounds. Part I. Five-membered ring systems from amino- and hydroxy-naphthalenes
作者:R. Hemming、D. G. Johnston
DOI:10.1039/jr9640000466
日期:——
1364. The 4,6-O-butylidene acetals of D-glucose and D-glucitol