W(O-2,6-C6H3X2)2Cl4/Bu4Sn as metathesis catalyst of 1-alkenes

✍ Scribed by C. van Schalkwyk; H.C.M. Vosloo; J.A.K. du Plessis

• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 164 KB
• Volume: 133
• Category: Article
• ISSN: 1381-1169
• DOI: 10.1016/s1381-1169(98)00120-4

✦ Synopsis

Ž

. Ž . Tungsten compounds with aryloxo ligands, i.e., W O-2,6-C H X Cl X s Cl, Ph and Bu Sn, were investigated as 6 3 2 2 4 4 catalytic systems for the metathesis of 1-alkenes of varying carbon lenghts. The catalytic system was activated at 858C for 20 min prior to use. Optimum metathesis activity with 1-alkenes was observed at 858C and a SnrW molar ratio s 3. The Ž . W O-2,6-C H X Cl rBu Sn catalytic system is very active for the metathesis of 1-alkenes with a carbon chain length of 6 3 2 2 4 4 about six to eight and it favours a more polar solvent such as chlorobenzene.