| ²é¿´: 472 | »Ø¸´: 1 | |||
| ±¾Ìû²úÉú 1 ¸ö ²©Ñ§EPI £¬µã»÷ÕâÀï½øÐв鿴 | |||
ÖÜ·¶Ð³æ (СÓÐÃûÆø)
|
[ÇóÖú]
2-°±»ùàçßò-4-¼×Ëá
|
||
| °ïæһÏ£¬2-°±»ùàçßò-4-¼×ËṤҵÉú²ú·Ïߣ¬Ð»Ð»£¬¸ú2-°±»ùàçßò-4-¼×ËáÓйصÄ×ÊÁÏ |
» ²ÂÄãϲ»¶
366Çóµ÷¼Á
ÒѾÓÐ9È˻ظ´
²ÄÁϹ¤³Ì085601£¬270Çóµ÷¼Á
ÒѾÓÐ37È˻ظ´
279ѧ˶ʳƷרҵÇóµ÷¼ÁԺУ
ÒѾÓÐ18È˻ظ´
290µ÷¼ÁÉúÎï0860
ÒѾÓÐ31È˻ظ´
Ò»Ö¾Ô¸085802 323·ÖÇóµ÷¼Á
ÒѾÓÐ13È˻ظ´
277Çóµ÷¼Á
ÒѾÓÐ23È˻ظ´
322Çóµ÷¼Á£¬08¹¤¿Æ
ÒѾÓÐ4È˻ظ´
²ÄÁϹ¤³Ì281»¹Óе÷¼Á»ú»áÂð
ÒѾÓÐ30È˻ظ´
»¯Ñ§070300 Çóµ÷¼Á
ÒѾÓÐ16È˻ظ´
»¯¹¤Ñ§Ë¶294·Ö£¬Çóµ¼Ê¦ÊÕÁô
ÒѾÓÐ12È˻ظ´
» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:
ÇóÖú·ÒëÈÕÎÄרÀû
ÒѾÓÐ2È˻ظ´
¶àôÇ»ù»¯ºÏÎï ÇóÖú
ÒѾÓÐ16È˻ظ´
ÇóÖú£ºÓйØËÄÇâß»à«ÎÊÌâ
ÒѾÓÐ11È˻ظ´
N£¬N-¶þ¼×»ù¼×õ£°·ÓëÄÆ·´Ó¦Âð£¿
ÒѾÓÐ7È˻ظ´
É¢¾¡ËùÓнð±ÒÇóôÇ»ùºù«ëåÏêϸ²½Ö裨×ö³É¹¦¹ýµÃÇë½ø£©
ÒѾÓÐ10È˻ظ´
2-°±»ùàçßòÉÏBoc±£»¤Ê±£¬Éú³ÉµÄ²»ÈÜÎïÊÇʲô£¿
ÒѾÓÐ6È˻ظ´
ÓÐËÓñûÏ©ëæ×ö¹ýʵÑéÂ𣿼±ÇóһЩעÒâÊÂÏî
ÒѾÓÐ13È˻ظ´
4-¼×Ñõ»ù-2-°±»ù±½¼×ËáµÄºÏ³É
ÒѾÓÐ6È˻ظ´
¡¾ÇóÖú¡¿»¯Ñ§·´Ó¦Ê½µÄÊéдÓë»úÀí
ÒѾÓÐ5È˻ظ´
¡¾ÇóÖú¡¿¹ØÓÚÊå¶¡»ù¶þ¼×»ùÂȹèÍéµÄÊÂÇé
ÒѾÓÐ21È˻ظ´
.net
ÈÙÓþ°æÖ÷ (ÎÄ̳¾«Ó¢)
- ²©Ñ§EPI: 44
- Ó¦Öú: 40 (СѧÉú)
- ¹ó±ö: 8.491
- ½ð±Ò: 297319
- É¢½ð: 46753
- ºì»¨: 443
- ɳ·¢: 62
- Ìû×Ó: 13899
- ÔÚÏß: 3497.8Сʱ
- ³æºÅ: 1487310
- ×¢²á: 2011-11-11
- רҵ: Öж¾
- ¹ÜϽ: ÍâÎÄÊé¼®ÇóÖú
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
ÖÜ·¶(½ð±Ò+2, ²©Ñ§EPI+1): ¡ïÓаïÖú лл 2012-03-07 13:59:16
ÖÜ·¶(½ð±Ò+2): ¡ïÓаïÖú лл 2012-03-07 13:59:47
06233053(½ð±Ò+4): ´ú·¢ 2012-03-10 15:13:00
ÖÜ·¶(½ð±Ò+2, ²©Ñ§EPI+1): ¡ïÓаïÖú лл 2012-03-07 13:59:16
ÖÜ·¶(½ð±Ò+2): ¡ïÓаïÖú лл 2012-03-07 13:59:47
06233053(½ð±Ò+4): ´ú·¢ 2012-03-10 15:13:00
|
To 40 ml of an aqueous solution of 4.00 g (23.2 mmol) of ethyl 2-aminothiazole-4-carboxylate was added 1.86 g (46.5 mmol) of sodium hydroxide, followed by stirring at room temperature for 5 hours. The reaction liquid was adjusted to pH 1 by the addition of concentrated hydrochloric acid, and the precipitated crystals were collected by filtration to prepare 2.84 g (yield 85percent) of a target compound. 1H-NMR (CDCl3, ppm) ¦Ä 7.18 (2H, broad-s), 7.38 (1H, s). The proton of the carboxylic acid was not detected. http://g.zhubajie.com/urllink.php?id=12040204zw7a6ms72k0yhnhk |

2Â¥2012-03-05 11:47:05













»Ø¸´´ËÂ¥