Znn3bq.jpeg
ÉÇÍ·´óѧº£Ñó¿ÆÑ§½ÓÊܵ÷¼Á
²é¿´: 752  |  »Ø¸´: 3
±¾Ìû²úÉú 1 ¸ö ·­ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴

fxljzy

Òø³æ (СÓÐÃûÆø)

[ÇóÖú] Âé·³ÄÄλ´óÏɰïæ·­ÒëһϠ£¨Óлú°·´ß»¯£©

ÖÐÎÄ£ºÓÉÓÚÓ÷ÇÊÖÐԵİ·´ß»¯¼ÁÎÞ·¨µÃµ½»¯ºÏÎï1a,1bµÄÏûÐýÌ壬ËùÒÔÕâЩ»¯ºÏÎïµÄÏûÐýÌåÊÇÓɹ¹ÐÍÏà·´µÄ´ß»¯¼ÁµÃµ½ÏàÓ¦µÄÊÖÐÔ»¯ºÏÎͨ¹ýÅäÎéµÃµ½µÄ£¬ËùÒÔ¶ÔÓ¦Òì¹¹ÌåµÄ±ÈÀýÄÑÒÔ´ïµ½1£º1.

´ó¿¬¾ÍÊÇÕâô¸öÒâ˼£¬·³Çë¸÷λʦÐÖʦ½ã°ïæ·­Òëһϡ£

ллÁË¡£

» ²ÂÄãϲ»¶

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

һدһ»®

½ð³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
Carena: ½ð±Ò+1, ¸ÐлӦÖú 2012-11-01 14:58:05
fxljzy: ½ð±Ò+15, ·­ÒëEPI+1 2012-11-02 23:22:25
As the racemic of the 1a and 1b  compounds  couldn`t be  obtained  by using  the non-chiral amide catalyst, the racemic of the those compounds   was synthesised  by the coordinated  reaction of the  related chiral compounds and the catalytic effect of the reversed structure compounds , so the equivalent of the enantimoer couldn`t reach 1:1 .
2Â¥2012-11-01 14:06:29
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

luxiaoying

ľ³æ (ÖøÃûдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
phu_grassman: ½ð±Ò+1, thanks 2012-11-02 21:13:52
fxljzy: ½ð±Ò+15 2012-11-02 23:22:32
Because using achiral amine catalyst can 't get compound 1 a and 1 b of racemic form, so these compounds of racemic form is by configuration opposite catalyst get corresponding chiral compounds, through the compatibility get, so it is difficult to achieve corresponding isomer proportion of 1:1.
×·Çó׿Խ£¬³É¹¦¾Í»á×·ËæÄ㣡
3Â¥2012-11-01 18:29:00
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

fxljzy

Òø³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by һدһ»® at 2012-11-01 14:06:29
As the racemic of the 1a and 1b  compounds  couldn`t be  obtained  by using  the non-chiral amide catalyst, the racemic of the those compounds   was synthesised  by the coordinated  reaction of the   ...

4Â¥2012-11-02 23:22:16
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ fxljzy µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 291 Çóµ÷¼Á +31 »¯¹¤2026½ì±ÏÒµÉ 2026-04-09 31/1550 2026-04-13 17:33 by maomao2011
[˶²©¼ÒÔ°] ÓÐûÓÐѧУ²ÄÁÏרҵÊÕ¿çµ÷(Ò»Ö¾Ô¸085410) +13 momo(Éϰ¶°æ) 2026-04-06 16/800 2026-04-13 15:27 by Xurambo2014
[¿¼ÑÐ] 335Çóµ÷¼Á +18 ÏëÉϰ¶Ñ½£¡£¡ 2026-04-12 19/950 2026-04-13 14:15 by ÕÅzhihao
[¿¼ÑÐ] һ־Ը³¶«´óѧ071000ÉúÎïѧѧ˶³õÊÔ·ÖÊý276Çóµ÷¼Á +8 Ľ¾øcc 2026-04-09 8/400 2026-04-13 14:08 by ÕÅzhihao
[¿¼ÑÐ] 22ר˶Çóµ÷¼Á +6 haoyunÉϰ¶ 2026-04-11 8/400 2026-04-11 23:21 by labixiaoqiao
[¿¼ÑÐ] Çóµ÷¼Á +6 СÄô°®Ñ§Ï° 2026-04-11 9/450 2026-04-11 21:20 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 284Çóµ÷¼Á +11 archer.. 2026-04-09 12/600 2026-04-11 20:23 by À¶ÔÆË¼Óê
[¿¼ÑÐ] Çóµ÷¼Á£¬Ò»Ö¾Ô¸´óÁ¬Àí¹¤´óѧ354·Ö +5 ÓêÉùÓàÉú 2026-04-11 6/300 2026-04-11 16:12 by ÓêÉùÓàÉú
[¿¼ÑÐ] µ÷¼Á +4 µçÆø300Çóµ÷¼Á²» 2026-04-08 7/350 2026-04-11 10:44 by ×ÏêØ×ÏÆå
[¿¼ÑÐ] 283Çóµ÷¼Á +22 ÄǸöàà×Ó 2026-04-09 22/1100 2026-04-11 10:41 by ÄæË®³Ë·ç
[¿¼ÑÐ] 0854µ÷¼Á +8 950824he@ 2026-04-09 8/400 2026-04-11 10:11 by zhq0425
[¿¼ÑÐ] 298Çóµ÷¼Á +9 ¶¤¶£ß˶¬¹Ï 2026-04-07 11/550 2026-04-11 09:35 by zhq0425
[¿¼ÑÐ] ¼ÆËã»úÀàÇóµ÷¼Á£¬22408-274·Ö +7 Éϰ¶deС³æ 2026-04-09 8/400 2026-04-10 19:56 by fxue1114
[¿¼ÑÐ] Ò»Ö¾Ô¸211£¬»¯Ñ§Ñ§Ë¶£¬310·Ö£¬±¾¿ÆÖصãË«·Ç£¬Çóµ÷¼Á +27 ŬÁ¦·Ü¶·112 2026-04-07 30/1500 2026-04-10 15:06 by Kilig0317
[¿¼ÑÐ] Ò»Ö¾Ô¸ÖпÆÔº105500רҵ×Ü·Ö315Çóµ÷¼Á +6 lallalh 2026-04-09 7/350 2026-04-09 17:51 by lallalh
[¿¼ÑÐ] ²ÄÁϹ¤³Ì322 +18 ¹þ¹þ¹þºðºðºð¹þ 2026-04-07 19/950 2026-04-09 10:44 by cymywx
[¿¼ÑÐ] ¿¼ÑÐÇóµ÷¼Á +4 ö©??? 2026-04-08 4/200 2026-04-08 21:44 by ÍÁľ˶ʿÕÐÉú
[¿¼ÑÐ] 22408 266Çóµ÷¼Á +11 masss11222 2026-04-07 14/700 2026-04-08 11:06 by yulian1987
[¿¼ÑÐ] 263·ÖBÇøÇóµ÷¼Á +6 Àînihao 2026-04-08 6/300 2026-04-08 09:38 by ÄÏ¿ªÐ¡ôë
[¿¼ÑÐ] 333Çóµ÷¼Á +6 ºÏ³ËÑîϰϦ 2026-04-06 6/300 2026-04-07 09:44 by Öí»á·É
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û