Silica bonded n-propyl-۴-aza-۱-azoniabicyclo[۲.۲.۲]octane chloride (SB-DABCO): A highly efficient, reusable and new heterogeneous catalyst for the synthesis of ۴H-benzo[b]pyran derivatives، انجام شده توسط علیرضا حسنی نژاد

مشخصات پژوهش

عنوان	Silica bonded n-propyl-4-aza-1-azoniabicyclo[2.2.2]octane chloride (SB-DABCO): A highly efficient, reusable and new heterogeneous catalyst for the synthesis of 4H-benzo[b]pyran derivatives
نوع پژوهش	مقالات در نشریات
کلیدواژه‌ها	Silica bonded n-propyl-4-aza-1-azoniabicyclo[2.2.2]octane chloride (SB-DABCO); 4H-Benzo[b]pyran; Silica supported catalyst; Alkylmalonate; 5,5-dimethylcyclohexane-1,3-dione
مجله	APPLIED CATALYSIS A-GENERAL
شناسه DOI	10.1016/j.apcata.2011.04.012
پژوهشگران	علیرضا حسنی نژاد (نفر اول) ، محسن شکوهی (نفر دوم) ، نوشین گلزار (نفر سوم) ، عبدالکریم زارع (نفر چهارم) ، محمد مهدی درودمند (نفر پنجم)

چکیده

The reaction of 3-chloropropyl silica with diazabicyclo[2.2.2]octane in dry acetone affords silica bonded n-propyl-4-aza-1-azoniabicyclo[2.2.2]octane chloride (SB-DABCO) as a new basic catalyst. The catalyst is used for the efficient synthesis of 4H-benzo[b]pyran derivatives via one-pot three-component reaction of cyclic ketones/1,3-diketones with aromatic aldehydes and alkylmalonates.