Strontium chloride was used as an efficient and recyclable catalyst in one-pot condensation of anthranilic acid, ortho esters and amines leading to the formation of 4（3H）-quinazolinone derivatives in good yields at ...Strontium chloride was used as an efficient and recyclable catalyst in one-pot condensation of anthranilic acid, ortho esters and amines leading to the formation of 4（3H）-quinazolinone derivatives in good yields at room temperature under solvent-free conditions.展开更多
4（3H）-Quinazolinones have been synthesized from poly（ethylene glycol） （PEG） supported aza-Wittig reaction. 2-Dialkylamino- 4（3H）-quinazolinones 6 were synthesized efficiently by reaction of secondary amine wit...4（3H）-Quinazolinones have been synthesized from poly（ethylene glycol） （PEG） supported aza-Wittig reaction. 2-Dialkylamino- 4（3H）-quinazolinones 6 were synthesized efficiently by reaction of secondary amine with PEG-supported carbodiimides 4, which were obtained from aza-Wittig reaction of PEG-supported iminophosphoranes 3 with isocyanates.展开更多
The title complexes based on 4（3H）-quinazolinone ligand have been synthesized and characterized by elemental analysis, IR spectrum and single-crystal X-ray diffraction analysis.Complex 1 belongs to the triclinic sys...The title complexes based on 4（3H）-quinazolinone ligand have been synthesized and characterized by elemental analysis, IR spectrum and single-crystal X-ray diffraction analysis.Complex 1 belongs to the triclinic system, space group P1, with a = 6.5392（3）, b = 7.4402（5）, c =10.3397（7） ？, α = 83.204（5）, β = 75.465（5）, γ = 86.075（5）° and V = 483.88（5） ？~3. Complex 2 is of orthorhombic system, space group Pbca, with a = 10.1294（3）, b = 7.6747（5）, c = 23.8171（15） ？ and V = 1849.1（4） ？~3. Complex 3 belongs to the orthorhombic system, space group Pbca, with a =12.7188（2）, b = 6.66582（9）, c = 25.6987（6） ？ and V = 2178.77（5） ？~3. The complex structures are affected by the synthesis conditions.展开更多
文摘Strontium chloride was used as an efficient and recyclable catalyst in one-pot condensation of anthranilic acid, ortho esters and amines leading to the formation of 4（3H）-quinazolinone derivatives in good yields at room temperature under solvent-free conditions.
基金We gratefully acknowledge financial support of this work by the Natural Science Foundation of Hubei Province （No. 2006ABB016） the National Natural Science Foundation of China （No. 20772041） Key Project of Chinese Ministry of Education （No. 107082）.
文摘4（3H）-Quinazolinones have been synthesized from poly（ethylene glycol） （PEG） supported aza-Wittig reaction. 2-Dialkylamino- 4（3H）-quinazolinones 6 were synthesized efficiently by reaction of secondary amine with PEG-supported carbodiimides 4, which were obtained from aza-Wittig reaction of PEG-supported iminophosphoranes 3 with isocyanates.
基金Supported by the Guilin scientific research and technological development program(No.20110330)the project of education department of Guangxi province(No.YB2014331)the Natural Science Foundation of Guangxi Province(2014GXNSFAA118035)
文摘The title complexes based on 4（3H）-quinazolinone ligand have been synthesized and characterized by elemental analysis, IR spectrum and single-crystal X-ray diffraction analysis.Complex 1 belongs to the triclinic system, space group P1, with a = 6.5392（3）, b = 7.4402（5）, c =10.3397（7） ？, α = 83.204（5）, β = 75.465（5）, γ = 86.075（5）° and V = 483.88（5） ？~3. Complex 2 is of orthorhombic system, space group Pbca, with a = 10.1294（3）, b = 7.6747（5）, c = 23.8171（15） ？ and V = 1849.1（4） ？~3. Complex 3 belongs to the orthorhombic system, space group Pbca, with a =12.7188（2）, b = 6.66582（9）, c = 25.6987（6） ？ and V = 2178.77（5） ？~3. The complex structures are affected by the synthesis conditions.
