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Preparation of 1H-[1,2,3] triazole 1 -Benzyl- 1 H-[1,2,3] triazole (125 Kgs, obtained in the Example 1) in isopropyl alcohol (500 Lts) was hydrogenated with 3.75 Kgs of 5 percent Pd-C under a pressure of 20-25 Kgs at 1 10¡ãC for 10 to 12 hours. At end of the reaction, benzyl triazole content was 1.66 percent and triazole content was 98.34 percent. The reaction mass was cooled to room temperature and filtered Pd-C through hyflo bed and washed the bed with isopropanol (100 Lts). Distilled off the solvent under vacuum completely to obtain the crude product, 1H-[1,2,3] triazole (78 Kgs). The crude material, thus obtained, was purified by high vacuum distillation (2-5mm) and collected the pure title compound (38 - 42 Kgs) at vapor temperature (80 - 83¡ãC). ·¢×ÔСľ³æAndroid¿Í»§¶Ë |
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- Ìû×Ó: 2100
- ÔÚÏß: 567.1Сʱ
- ³æºÅ: 72410
- ×¢²á: 2005-06-04
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1H - [ 1,2,3]ÈýßòµÄÖÆ±¸ 110¡æÖÐ20-25¹«½ïѹÁ¦Ï£¬ 1 -Üлù- 1 H - [ 1,2,3]Èýßò£¨125¹«½ï,ʵÀý1Öеõ½µÄ£©ÓÚÒì±û´¼( 500Éý£©ÖÐÓÃ3.75¹«½ï5 % Pd - C½øÐÐÇ⻯ 10µ½12Сʱ¡£·´Ó¦½áÊøÊ±ÜлùÈýßòº¬Á¿Îª1.66 %£¬ÈýßòÈýßòº¬Á¿Îª98.34 %¡£·´Ó¦ÎïÁÏ·ÅÀäÖÁÊÒΣ¨100Éý£©ÔÙ¾Á÷»¯´²¹ýÂ˲¢ÓÃÒì±û´¼£¨100Éý£©Ï´Á÷»¯´²¡£Õæ¿Õ³¹µ×Õô³öÈܼÁ£¬µÃµ½1H - [ 1,2,3]Èýßò( 78¹«½ï£©´Ö²úÎͨ¹ý¸ßÕæ¿ÕÕôÁó(2-5mm)¾«ÖÆÉÏÊöµÃµ½µÄ´ÖÆ·²¢ÓÚÕôÆûζȣ¨80-83¡æ£©ÊÕ¼¯´¿µÄÌâÊö»¯ºÏÎ38 - 42¹«½ï£©¡£ |
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