سامانه پشتیبانی خدمات اطلاعات

  اخبار و اعلانات

 آمار

تعداد نشریات161
تعداد شماره‌ها6,532
تعداد مقالات70,501
تعداد مشاهده مقاله124,095,074
تعداد دریافت فایل اصل مقاله97,201,038
Kakaei, S., Sid Kalal, H., Hoveidi, H.. (1394). Ultrasound Assisted One-pot Synthesis of Dihydropyrimidinones Using Holmium Chloride As Catalyst. , 26(2), 117-123.
S. Kakaei; H. Sid Kalal; H. Hoveidi. "Ultrasound Assisted One-pot Synthesis of Dihydropyrimidinones Using Holmium Chloride As Catalyst". , 26, 2, 1394, 117-123.
Kakaei, S., Sid Kalal, H., Hoveidi, H.. (1394). 'Ultrasound Assisted One-pot Synthesis of Dihydropyrimidinones Using Holmium Chloride As Catalyst', , 26(2), pp. 117-123.
Kakaei, S., Sid Kalal, H., Hoveidi, H.. Ultrasound Assisted One-pot Synthesis of Dihydropyrimidinones Using Holmium Chloride As Catalyst. , 1394; 26(2): 117-123.

Ultrasound Assisted One-pot Synthesis of Dihydropyrimidinones Using Holmium Chloride As Catalyst

Journal of Sciences, Islamic Republic of Iran
مقاله 2، دوره 26، شماره 2، شهریور 2015، صفحه 117-123    اصل مقاله (256.53 K)
نوع مقاله: Original Paper
نویسندگان
S. Kakaei* 1؛ H. Sid Kalal1؛ H. Hoveidi2
11 NFCRS, Nuclear Science and Technology Research Institute, P.O. Box 11365-3486, Tehran, Islamic Republic of Iran
22 Graduate Faculty of Environment, University of Tehran, Tehran, Islamic Republic of Iran
چکیده
A simple and green chemical procedure was reported for the synthesis of dihydropyrimidinones from various aldehydes, ethyl acetoacetate and urea or thiourea using  holmium chloride as catalyst. The reactions were performed under solvent free conditions with ultrasound irradiation as the energy source. The advantages of this protocol include the excellent yield, operational simplicity, short time and the avoidance of the use of organic solvents and friendly preparation. Products were identified by mp. and IR, NMR and Mass spectroscopies.
کلیدواژه‌ها
Biginelli reaction؛ Solvent-free؛ Ultrasound-assisted؛ One-pot؛ Holmium chloride
آمار
تعداد مشاهده مقاله: 1,115
تعداد دریافت فایل اصل مقاله: 1,485


سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب