In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 76114-73-3, name is Prop-2-yn-1-yl butylcarbamate belongs to amides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. 76114-73-3
EXAMPLE 1; [0050] A reactor was charged with 330 g of water which was then cooled to a temperature of 0-8 C. [0051] To the cooled water, while stirring was added 3.4 grams of a nonionic surfactant agent Merpol HCS and 16.85 g of butyl propynyl carbamate while maintaining the temperature between 0-8 C. [0052] The reactor was further charged with 8.85 g of a 50% aqueous solution of sodium hydroxide and 16.28 grams of sodium iodide which had been previously dissolved in 50 g of water. The temperature was maintained between 5-8 C. [0053] The reactor with strong agitation was slowly charged with 70.2 g of a 13.6% solution of sodium hypochlorite while maintaining the reaction mass at a temperature of between 6 and 11 C. [0054] The temperature was allowed to ramp up slightly to 15-20 C. and the reaction mass was agitated for 90 minutes. The reaction mass was then slowly heated to a temperature of 35-40 C. The ramping up of the temperature was effected at a rate of 0.25 to 0.75 C. per minute. [0055] With agitation the pH of the reaction mass was then adjusted to 6.9 with acetic acid. The pH reaction mass was then adjusted to 6.6 with sodium bisulfite. The temperature was then ramped up to 55 to 59 C. at a rate of 0.25 to 0.75 C. per minute. [0056] When a temperature reached a range of 55-59 C. cooling was applied to the reaction mass to ramp the temperature of the reaction mass down to 25-30 C., at a ramp down rate of 0.33-0.75 C. per minute. [0057] The reaction mass was then agitated for 10 minutes and then the reaction mass was filtered. The filtration cake was washed twice with 100 ml of water. The cake was then dried at 35 C. to a constant weight. The reaction achieved a yield of 93.5% of IPBC which assayed at 98.7% IPBC.; A reactor was charged with 1400 gal of water which was then cooled to a temperature of 0-8 C. [0060] To the cooled water, while stirring was added to 87 pounds of a nonionic surfactant agent Merpol HCS and 429 pounds of butyl propynyl carbamate while maintaining the temperature between 0-8 C. [0061] The reactor was further charged with 214 pounds of a 50% aqueous solution of sodium hydroxide and 853 pounds of 50% sodium iodide solution. The temperature was maintained between 5-8 C. [0062] The reactor with strong agitation was slowly charged with 1780 pounds of a 13.6% solution of sodium of sodium hypochlorite while maintaining the reaction mass at a temperature of between 6 and 11 C. [0063] The temperature was allowed to ramp up slightly to 15-20 C. and the reaction mass was agitated for 90 minutes. The reaction mass was then slowly heated to a temperature of 35-40 C. The ramping up of the temperature was effected at a rate of 0.25 to 0.75 C. per minute. [0064] With agitation the pH of the reaction mass was then adjusted to 6.9 with acetic acid. The pH reaction mass was then adjusted to 6.6 with sodium bisulfite. The temperature was then tamped up to 55 to 59 C. at a rate of 0.25 to 0.75 C. per minute. [0065] With agitation the pH of the reaction mass was then adjusted to 6.9 with acetic acid. The pH reaction mass was then adjusted to 6.6 with sodium bisulfite. The temperature was then ramped up to 55 to 59 C. at a rate of 0.25 to 0.75 C. per minute. [0066] When a temperature reached a range of 55-59 C., cooling was applied to the reaction mass to ramp the temperature of the reaction mass down to 25-30 C., at a ramp down rate of 33-75 C. per minute. [0067] When a temperature reached a range of 55-59 C., cooling was applied to the reaction mass to ramp the temperature of the reaction mass down to 25-30 C., at a ramp down rate of 33-75 C. per minute. [0068] The reaction mass was then agitated and then the reaction mass was centrifuged with water for 10 minutes. The cake was washed. The cake was then dried at 30-45 C. to a constant weight. The reaction achieved a yield of 93.2% of IPBC which assayed at 98.7% IPBC.
The synthetic route of 76114-73-3 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Schneider, David J.; Schneider, Charles A.; Jones, Kurt A.; Heineke, Martin S.; US2005/33083; (2005); A1;,
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