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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 31, 2001 - Issue 24
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Original Articles

A CONVENIENT SYNTHESIS OF 4-ARYL-7,7-DIMETHYL-5-OXO- 3,4,5,6,7,8-HEXAHYDROCOUMARIN UNDER MICROWAVE IRRADIATION WITHOUT CATALYST

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Pages 3729-3733 | Received 09 Feb 2001, Published online: 09 Nov 2006

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  • X-ray analysis of 4a: Empirical formula C23H30NO4, F.W. 384.48, T al; 293(2) K, monoclinic, space group P21, a al; 9.3639(19) Å, b al; 5.9740(12) Å, c al; 15.731(3) Å, α al; 90°, β al; 102.87(3)°, γ al; 90°, V al; 857.9(3) Å3, Z al; 2, Dc al; 1.488 Mg/cm3, λ(M0Kα) al; 0.71073 Å, μ al; 0.101 mm−1, F(000) al; 414. 3.83 < σ < 27.87, R = 0.0805, Rw al; 02441. Largest diff. Peak and hole: 0.469 and − 0.235 e Å−3

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