| ชื่อเรื่อง | : | Synthesis of 3-Carbonyl Pyrazole-5-Phosphonates via 1,3-Dipolar Cycloaddition of Bestman-Ohira Reagent with Ynones |
| นักวิจัย | : | Pramanik, M M D , Kant, Ruchir , Rastogi, Namrata |
| คำค้น | : | Bestmann–Ohira reagent , Dipolar cycloaddition , Ynones , Phosphonyl pyrazole |
| หน่วยงาน | : | Central Drug Research Institute (CDRI), India |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2557 |
| อ้างอิง | : | Tetrahedron, 2014, 70(34): 5214–5220 , http://hdl.handle.net/123456789/1391 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | CDRI Communication No. 8707 |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | The present work explores the hitherto unexplored reactivity of ynones as dipolarophiles with Bestman Ohira reagent. The reaction offers a convenient route for the synthesis of regioisomerically pure 3,5-disubstituted or 3,4,5-trisubstituted pyrazoles in excellent yields. However, di-ynones and molecules possessing both ynone and enone functionalities provide only monocycloaddition products, whereas another multiple bond undergoes Michael addition with the methoxide anion. |
| บรรณานุกรม | : |
Pramanik, M M D , Kant, Ruchir , Rastogi, Namrata . (2557). Synthesis of 3-Carbonyl Pyrazole-5-Phosphonates via 1,3-Dipolar Cycloaddition of Bestman-Ohira Reagent with Ynones.
: Central Drug Research Institute (CDRI), India. Pramanik, M M D , Kant, Ruchir , Rastogi, Namrata . 2557. "Synthesis of 3-Carbonyl Pyrazole-5-Phosphonates via 1,3-Dipolar Cycloaddition of Bestman-Ohira Reagent with Ynones".
: Central Drug Research Institute (CDRI), India. Pramanik, M M D , Kant, Ruchir , Rastogi, Namrata . "Synthesis of 3-Carbonyl Pyrazole-5-Phosphonates via 1,3-Dipolar Cycloaddition of Bestman-Ohira Reagent with Ynones."
: Central Drug Research Institute (CDRI), India, 2557. Print. Pramanik, M M D , Kant, Ruchir , Rastogi, Namrata . Synthesis of 3-Carbonyl Pyrazole-5-Phosphonates via 1,3-Dipolar Cycloaddition of Bestman-Ohira Reagent with Ynones. : Central Drug Research Institute (CDRI), India; 2557.
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