| ²é¿´: 437 | »Ø¸´: 2 | |||
| ±¾Ìû²úÉú 1 ¸ö ·ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴 | |||
| µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû | |||
123Îâ¶¹¶¹Ä¾³æ (ÖøÃûдÊÖ)
|
[ÇóÖú]
Çó°ÑÕâÁ½¾ä»°·Òë³ÉººÓï
|
||
|
This low-field shift is compatible with the existence of a hydrogen bonding to the carbonyl group of the ester, and the large vicinal coupling is consistent with a trans-periplanar relationship between the vicinal hydrogens. The lack of formation of the 1,2-hygrogen migration product which is frequently formed in the Lewis acid-catalyzed azirination renders support to the cat-ion radical mechanism. |
» ²ÂÄãϲ»¶
»úе¹¤³Ì264ѧ˶Çóµ÷¼Á
ÒѾÓÐ3È˻ظ´
264Çóµ÷¼Á
ÒѾÓÐ9È˻ظ´
Çóµ÷¼Á
ÒѾÓÐ6È˻ظ´
22408 266Çóµ÷¼Á
ÒѾÓÐ7È˻ظ´
Çóµ÷¼Á
ÒѾÓÐ14È˻ظ´
273Çóµ÷¼Á
ÒѾÓÐ43È˻ظ´
307Çóµ÷¼Á
ÒѾÓÐ13È˻ظ´
327Çóµ÷¼Á
ÒѾÓÐ7È˻ظ´
338Çóµ÷¼Á
ÒѾÓÐ6È˻ظ´
326·Ö£¬Ò»Ö¾Ô¸»¦9£¬ÇóÉúÎïѧµ÷¼Á
ÒѾÓÐ3È˻ظ´
ÓÀÔ¶µÄNO.1
½û³æ (ÎÄ̳¾«Ó¢)
|
±¾ÌûÄÚÈݱ»ÆÁ±Î |
3Â¥2014-02-23 16:32:42
wangjun890
ÖÁ×ðľ³æ (ÖªÃû×÷¼Ò)
- ·ÒëEPI: 3
- Ó¦Öú: 1067 (²©ºó)
- ½ð±Ò: 21565.8
- ºì»¨: 36
- Ìû×Ó: 6730
- ÔÚÏß: 552.1Сʱ
- ³æºÅ: 575839
- ×¢²á: 2008-06-19
- רҵ: ´ß»¯»¯Ñ§
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
°®ÓëÓêÏÂ: ½ð±Ò+1 2014-02-15 14:12:31
123Îâ¶¹¶¹: ½ð±Ò+10, ·ÒëEPI+1 2014-02-24 10:13:47
°®ÓëÓêÏÂ: ½ð±Ò+1 2014-02-15 14:12:31
123Îâ¶¹¶¹: ½ð±Ò+10, ·ÒëEPI+1 2014-02-24 10:13:47
|
µÍ³¡Î»ÒÆÓëõ¥ÉÏôÈ»ùÇâ¼üÊÇÒ»Öµģ¬´óµÄÁÚ½üñîºÏÒ²ÓëÁÚλÇâÖ®¼äµÄ·´µþ¹ØÏµ. ÔÚ·Ò×˹Ëá-´ß»¯µÄ Azirination·´Ó¦Öо³£³öÏÖµÄ1,2-ÇâÇ¨ÒÆ²úÎïÐγɵÄȱ·¦ÌṩÁ˶ÔÕýÀë×Ó×ÔÓÉ»ù»úÀíµÄÖ§³Ö¡£ |
2Â¥2014-02-15 13:43:22














»Ø¸´´ËÂ¥