TCI
1,3-Bis(2,6-diisopropylphenyl)imidazolium-2-carboxylate TCI B5603
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Deskripsi
1,3-Bis(2,6-diisopropylphenyl)imidazolium-2-carboxylate (CAS 917604-39-8) merupakan prekursor ligan N-Heterocyclic Carbene (NHC) yang banyak digunakan dalam sintesis katalis organologam di laboratorium riset. Senyawa ini berfungsi sebagai sumber karben terselubung (masked carbene) yang melepaskan ligan NHC aktif melalui dekarboksilasi termal, sehingga memudahkan penanganan dibandingkan ligan karben bebas yang sangat reaktif terhadap udara dan kelembapan.
Senyawa ini umum diaplikasikan dalam reaksi kopling silang (cross-coupling), hidrogenasi, dan metatesis olefin yang dikatalisis oleh kompleks logam transisi seperti paladium, rutenium, dan iridium. Dengan gugus 2,6-diisopropilfenil yang bulky, ligan NHC yang dihasilkan memberikan perlindungan sterik optimal pada pusat logam, meningkatkan stabilitas katalis serta selektivitas reaksi, sehingga banyak digunakan dalam pengembangan metodologi sintesis organik modern.
Spesifikasi
- Merek: TCI (Tokyo Chemical Industry)
- Nomor Katalog: B5603
- Nomor CAS: 917604-39-8
- Kategori: Chemistry > Catalysis and Inorganic Chemistry > Carbon-Donor Ligands [Catalysis]
- Varian/Kemasan: 1 g
- Simpan di tempat sejuk dan kering, hindari paparan kelembapan berlebih untuk mencegah degradasi sebelum digunakan.
English
1,3-Bis(2,6-diisopropylphenyl)imidazolium-2-carboxylate (CAS 917604-39-8) is a masked N-Heterocyclic Carbene (NHC) precursor supplied by TCI, widely employed in organometallic catalyst synthesis. Upon thermal decarboxylation, it liberates the active NHC ligand in situ, offering a convenient and air-stable alternative to handling free carbenes. This compound is extensively applied in cross-coupling reactions, hydrogenation, and olefin metathesis catalyzed by transition metal complexes such as palladium, ruthenium, and iridium.
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