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Tellurium-zinc exchange reaction. A new preparative method of alkenylzinc reagents

✍ Scribed by Jun Terao; Nobuaki Kambe; Noboru Sonoda

Book ID
103408285
Publisher
Elsevier Science
Year
1996
Tongue
French
Weight
193 KB
Volume
37
Category
Article
ISSN
0040-4039

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Diaryltellurides 2 and diarylditellurides 3 undergo a smooth tellurium-zinc exchange reaction in the presence of catalytic amounts of Ni(acac)2 (5-10 mmol %) leading to arylzinc derivatives 1. The reaction can be extended to the preparation of alkylzinc compounds and allows a stereoselective cycliza