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方案
98%
表单
solid
沸点
178-180 °C/60 mmHg (lit.)
mp
65-67 °C (lit.)
官能团
ester
SMILES字符串
COC(=O)C1=COC(=O)C=C1
InChI
1S/C7H6O4/c1-10-7(9)5-2-3-6(8)11-4-5/h2-4H,1H3
InChI key
HHWWWZQYHPFCBY-UHFFFAOYSA-N
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一般描述
Methyl coumalate is a 2-pyrone and acts as dienophile in Diels-Alder reaction. It reacts with 1,3-butadienes at 100°C to yield tetrahydrocoumarins and 4-methoxycarbonyltricyclo[3.2.1.02,7]octenes. It also reacts with cyclohexadiene to afford tetrahydronaphthalene-2-carboxylate. It undergoes Diels-Alder reaction with unactivated alkenes to afford para-substituted adducts.
应用
Methyl coumalate has been used as reagent in phosphine-catalyzed [4+3] annulation of modified allylic carbonates. It was also used in the preparation of 7-carboxyquinolizinium derivatives.
储存分类代码
11 - Combustible Solids
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, type N95 (US)
从最新的版本中选择一种：
分析证书(COA)
Lot/Batch Number
Diels-Alder reaction of methyl coumalate with 1, 3-dienes.
Imagawa T, et al.
Tetrahedron, 30(14), 2227-2231 (1974)
Quinolizinium Compounds by Cyclization of Pyridones from Methyl Coumalate and ?-Phenylethylamines.
Wiley RH, et al.
Journal of the American Chemical Society, 75(18), 4482-4484 (1953)
Aromatics from pyrones: para-substituted alkyl benzoates from alkenes, coumalic acid and methyl coumalate.
Kraus GA, et al.
Green Chemistry, 13(10), 2734-2736 (2011)
Suqing Zheng et al.
Organic letters, 11(17), 3978-3981 (2009-08-13)
A phosphine-catalyzed [4 + 3] annulation of modified allylic carbonates with methyl coumalate was developed. This strategy offered a powerful method for the construction of bicyclo[3.2.2]nonadiene skeleton with high stereoselectivity.
商品
The Diels–Alder reaction is the reaction between a conjugated diene and an alkene (dienophile) to form unsaturated six-membered rings. It is also referred to as a cycloaddition.
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