Yeni Ru-NHC Komplekslerinin Sentezi, Karakterizasyonu ve Aminlerin Alkilasyonundaki Uygulamaları

Öznur DOĞAN ULU
1.287 225

Öz


Bu çalışmada, benzhidril grubu içeren benzimidazolyum tuzları ilk olarak Ag2O ile etkileştirilerek Ag-NHC kompleksi elde edildi. Elde edilen Ag-NHC kompleksi izole edilmeden [RuCl2(p-simen)2]2 ile etkileştirilerek iki yeni rutenyum N-heterosiklik karben (Ru-NHC) kompleksi sentezlendi. Sentezlenen komplekslerin yapıları 1H-NMR, 13C-NMR, FT-IR ve elementel analiz yöntemleriyle karakterize edildi. Ayrıca, sentezlenen Ru-NHC kompleksleri, aminlerin alkoller ile alkilasyonu tepkimelerinde katalizör olarak kullanıldı. Alkilasyon tepkimesi, çevreye duyarlı ve ekonomik açıdan avantajlı olduğu için ödünç hidrojen metodolojisi yöntemi ile yapıldı. Bütün tepkimelerde %1 mol katalizör miktarı kullanıldı.  Elde edilen sonuçlar katalizörlerin N-alkilasyon tepkimesinde aktif olduğunu gösterdi. Ayrıca bu çalışmada kullanılan katalizörler literatürdeki benzerleriyle kıyaslandığında aktivitelerinin yaklaşık olarak aynı olduğu görülmüştür.

Anahtar kelimeler


Rutenyum katalizörü; N-Alkilasyon; Amin; N-heterosiklik karben

Tam metin:

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