Kalyani RAJKUMARI, Bittu LAMA, Lalthazuala ROKHUM

9496

A microwave-assisted highly stereoselective one-pot Wittig reaction under solvent-free conditions

We report a novel microwave-assisted two-step, one-pot protocol for the synthesis of olefins (alkenes) via Wittig reaction. The reaction was carried out under solvent-free conditions using basic alumina both as a heterogeneous catalyst and a solid support. Varieties of aromatic aldehydes were converted into their corresponding olefins within 30-50 min with good to excellent yields. An excellent predominance of E-isomers over Z-isomers (up to 100% E-selectivity) for all the olefin products was observed. This showed the attractive stereocontrol of our reported protocol. In addition, owing to the solid-state nature of the reactions, our procedure prevented the need for tedious aqueous extraction at the end of the reaction, thereby adding another aspect to the greenness of the reaction.
Keywords:

Wittig reaction, stereoselectivity microwave-assisted, one-pot synthesis, heterogeneous catalysis,

PDF
Turkish Journal of Chemistry-Cover
  • ISSN: 1300-0527
  • Yayın Aralığı: 6
  • Yayıncı: TÜBİTAK
Arşiv
Sayıdaki Diğer Makaleler

Vaibhav MISHRA, Tejpal Singh CHUNDAWAT

Design, synthesis, and evaluation of the antimycobacterial activity of 3-mercapto-1,2,4-triazole–pyrrole hybrids

Mihai MAREŞ, Gheorghe ROMAN, Valentin NĂSTASĂ, Andra-Cristina BOSTĂNARU

Pore length- and ion concentration-dependent ionic current in cylindrical nanopores: an atomistic molecular dynamics study

Nazar İLERİ ERCAN

Modification of biomass-derived activated carbon with magnetic $\alpha $-Fe$_{2}$O$_{3}$ nanoparticles for CO$_{2}$ and CH$_{4}$ adsorption

Çisem KIRBIYIK

Boric acid as an efficient and green catalyst for the synthesis of 2-amino-4,6-diarylnicotinonitrile under microwave irradiation in solvent-free conditions

Zahra HOSSEINZADEH, Katarzyna SLEPOKURA, Tadeusz LIS, Nima RAZZAGHI ASL, Ali RAMAZANI

Effect of crosslinking patterns on the properties of conjugated microporous polymers

Hakan BİLDİRİR

Nazar İleri ERCAN

Kalyani RAJKUMARI, Bittu LAMA, Lalthazuala ROKHUM

Mohammad Ali TAVANAIE, Abolfazl Mahmudi GEVARI

Spectrophotometric methods for the determination of fluoride ion using indole-3-acetic acid interaction with iron(III)

Adnan KENAR, Emine İlknur ÜNAL, Mustafa TAŞTEKİN, Mehmet Levent AKSU