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sltmac(½ð±Ò+1): »¶Ó­³£À´~~ 2011-04-27 14:37:35
yangsanfly(½ð±Ò+10, ·­ÒëEPI+1): ллÄ㣡£¡£¡ 2011-04-28 08:47:54
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Originally posted by yangsanfly at 2011-04-27 11:41:23:
ÒÔÑÎËáÇàÌÙ¼îºÍÑÇÏõËáÄÆÎªÔ­ÁÏ£¬Í¨¹ýÏõ»¯·´Ó¦ÖƵÃ1-Ïõ»ùÇàÌټ¿¼²ìÁËÔ­ÁÏÓÃÁ¿¡¢·´Ó¦Î¶Ⱥͷ´Ó¦Ê±¼ä¶Ô²úÎïÊÕÂʵÄÓ°Ï졣ʵÑé½á¹û±íÃ÷£ºÇàÌÙ¼îÓÃÁ¿Îª0.5gʱ£¬ÑÇÏõËáÄÆµÄÓÃÁ¿Îª0.2000g£¬Î¶ÈΪ12¡æ×óÓÒ£¬·´Ó¦Ê±¼ä1. ...

With hydrochloric sinomenine and sodium nitrite as substrates, 1-nitrosinomenine is obtained through nitrification. Influence of substrate amount, reaction temperature and reaction time on product yield was investigated. Experimental results indicate that, under the following conditions, i.e., sinomenine 0.5g , sodium nitrite 0.2000g, temperature approximately 12¡æ£¬reaction time 1.5h £¬the total yield rate of product is above 38.64%
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