2-硫代乙内酰脲

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of 2-methoxybenzaldehyde (2.5 g, 18 mmoles), 2-thiohydantoin (2.0 g, 17 mmoles), sodium acetate (4.0 g, 49 mmoles), acetic anhydride (1/2 ml), and acetic acid (15 ml) is stirred under an inert atmosphere and heated to reflux. After 1 hour the mixture is stirred into water (300 ml), and the precipitate is filtered off, rinsed with water three times and dried. The product is triturated in boiling methanol, filtered off, and dried to afford the pure product (3.4 g), mp 234°-235° C. heated to reflux the precipitate is filtered off rinsed with water three times dried The product is triturated filtered off dried

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of 2-methoxybenzaldehyde (2.5 g, 18 mmoles), 2-thiohydantoin (2.0 g, 17 mmoles), sodium acetate (4.0 g, 49 mmoles), acetic anhydride (1/2 ml), and acetic acid (15 ml) is stirred under an inert atmosphere and heated to reflux. After 1 hour the mixture is stirred into water (300 ml), and the precipitate is filtered off, rinsed with water three times and dried. The product is triturated in boiling methanol, filtered off, and dried to afford the pure product (3.4 g), mp 234°-235° C. heated to reflux the precipitate is filtered off rinsed with water three times dried The product is triturated filtered off dried

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Prepared according to the procedure described in Example 1 using 3-bromo-4-hydroxybenzaldehyde (3.1 g, 15 mmoles), 2-thiohydantoin (1.7 g, 15 mmoles), sodium acetate (4.5 g, 55 mmoles), and acetic acid (35 ml), to afford the pure product (3.4 g), mp 262° C. (dec). Prepared

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Prepared according to the procedure described in Example 1 using 3-bromo-4-hydroxybenzaldehyde (3.1 g, 15 mmoles), 2-thiohydantoin (1.7 g, 15 mmoles), sodium acetate (4.5 g, 55 mmoles), and acetic acid (35 ml), to afford the pure product (3.4 g), mp 262° C. (dec). Prepared

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Prepared according to the procedure described in Example 1 using 4-hydroxy-3,5-bis(1-methylethyl)benzaldehyde (3.0 g, 15 mmoles), 2-thiohydantoin (1.6 g, 14 mmoles), sodium acetate (4.2 g, 51 mmoles), and acetic acid (35 ml), filtered off, dried, and recrystallized from acetonitrile to afford the pure product (1.4 g), mp 225°-230° C. Prepared filtered off dried recrystallized from acetonitrile