ChemicalBook CAS DataBase List 2,3-Dibromo-4,5-dimethoxy-benzaldehyde

2,3-Dibromo-4,5-dimethoxy-benzaldehyde synthesis

8synthesis methods

Product Name:2,3-Dibromo-4,5-dimethoxy-benzaldehyde
CAS Number:70625-29-5
Molecular formula:C9H8Br2O3
Molecular Weight:323.97

2,3-DIBROMO-4-HYDROXY-5-METHOXYBENZALDEHYDE

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Yield:70625-29-5 79%

Steps:

120 2,3-Dibromo-4,5-dimethoxybenzaldehyde STR129

EXAMPLE 120 2,3-Dibromo-4,5-dimethoxybenzaldehyde STR129 Similarly to Example 79, 8.30 g (25.6 mmol) of title compound were obtained from 9.99 g (32.2 mmol) of 5,6-dibromovanillin (Isao Kubo et al., Journal of Natural Products, 53, 50 (1990.)(yield 79%). Melting point: 126°-127° C. ¹ H - NMR (400 MHz, CDCl₃, δ): 3.93 (3H, s), 3.95 (3H, s), 7.49 (1H, s). MS (M/Z) 322 (M⁺).

References:

US5244892,1993,A

6948-30-7 Synthesis