| ²é¿´: 520 | »Ø¸´: 2 | |||
| µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû | |||
liujianhua37Ìú¸Ëľ³æ (ÖøÃûдÊÖ)
ľ³æ´ïÈË
|
[ÇóÖú]
N-Hydroxysuccinimide methacrylateºÏ³ÉµÄÇóÖú ÒÑÓÐ1È˲ÎÓë
|
||
|
ÕâÊÇAngewÉϵÄһƪ¹ØÓÚNHSºÍ¼×»ù±ûÏ©õ£ÂȵĺϳÉN-Hydroxysuccinimide methacrylateµÄ·´Ó¦ ʵÑé²½ÖèÈçÏ£º£º£ºTriethylamine (0.5 mol) and methacryloyl chloride (0.5mol), each in 150 ml of CH,Cl,, are added dropwise with stirring and ice cooling to N-hydroxysuccinimide (0.5 mol) in anhydrous methylene dichloride (200 ml). After 6 hours' stirring at room temperature the precipitated triethylammonium chloride is removed and the filtrate is shaken with, successively,water, a little saturated sodium hydrogen carbonate solution, and again water, dried and evaporated.The residue is recrystallized from ethyl acetate/light petroIeum ;yield 70 g (77%) NHS¼´£¨ N-hydroxysuccinimide £©¸ù±¾¾Í²»ÈÜÓÚ¶þÂȼ×Í飬ÔõôÍùÏÂ×öÄØ£¬ÎÄÏ×ÓÐÎÊÌâô£¿£¿£¿£¿ |
» ²ÂÄãϲ»¶
¸÷λÀÏʦºÃ£¬ÎÒµÄһ־ԸΪ±±¾©¿Æ¼¼´óѧ085601²ÄÁÏר˶
ÒѾÓÐ12È˻ظ´
359Çóµ÷¼Á
ÒѾÓÐ7È˻ظ´
070300»¯Ñ§×¨Òµ279µ÷¼Á
ÒѾÓÐ10È˻ظ´
»·¾³¹¤³Ì297·ÖÇóµ÷¼ÁÒ»Ö¾Ô¸º¼¸ßÔº
ÒѾÓÐ9È˻ظ´
Ò»Ö¾Ô¸ÎäÀí²ÄÁϹ¤³Ì302µ÷¼Á»·»¯»ò»¯¹¤
ÒѾÓÐ9È˻ظ´
309·Ö085801Çóµ÷¼Á
ÒѾÓÐ5È˻ظ´
Ò»Ö¾Ô¸ ÄϾ©º½¿Õº½Ìì´óѧ £¬080500²ÄÁÏ¿ÆÑ§Ó빤³Ìѧ˶
ÒѾÓÐ5È˻ظ´
²ÄÁϵ÷¼Á
ÒѾÓÐ4È˻ظ´
²ÄÁϵ÷¼Á
ÒѾÓÐ3È˻ظ´
311£¨085601£©Çóµ÷¼Á
ÒѾÓÐ12È˻ظ´

liujianhua37
Ìú¸Ëľ³æ (ÖøÃûдÊÖ)
ľ³æ´ïÈË
- Ó¦Öú: 4 (Ó×¶ùÔ°)
- ½ð±Ò: 7616.5
- É¢½ð: 21
- ºì»¨: 8
- Ìû×Ó: 1028
- ÔÚÏß: 311.8Сʱ
- ³æºÅ: 1388792
- ×¢²á: 2011-09-03
- רҵ: ÎÞ»úÄÉÃ×»¯Ñ§
|
ÒѾ½â¾öÁË£¬Ð»Ð»£¬ÈýÒÒ°·¼Ó½øÈ¥¾ÍÈܽâÁË£¬µÚÒ»´Î×öÕâ¸ö·´Ó¦Ã»¾Ñé ·¢×ÔСľ³æAndroid¿Í»§¶Ë |

3Â¥2016-07-04 16:49:09
cheney808
½ð³æ (ÕýʽдÊÖ)
- Ó¦Öú: 63 (³õÖÐÉú)
- ½ð±Ò: 1032.1
- É¢½ð: 5
- ºì»¨: 13
- Ìû×Ó: 391
- ÔÚÏß: 124.4Сʱ
- ³æºÅ: 989307
- ×¢²á: 2010-04-05
- רҵ: ¸ß·Ö×Ӻϳɻ¯Ñ§
2Â¥2016-07-04 16:12:17














»Ø¸´´ËÂ¥