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lx1210
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- ×¢²á: 2012-07-05
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phu_grassman: ½ð±Ò-1, sorry, but you should translate it yourself. Thanks for your time. 2012-11-27 20:01:52
phu_grassman: ½ð±Ò-1, sorry, but you should translate it yourself. Thanks for your time. 2012-11-27 20:01:52
| With morphine Lin and 3, 4 - two fluorine nitrobenzene as raw material via substitution, reduction, diazotization - halogenating reaction synthesis intermediates 3 - fluorine - 4 - morpholine base bromobenzene (4); To (R) - epoxy chloropropane, potassium cyanate, adjacent benzene 2 formyl imine potassium as raw materials synthesis intermediates (R) - 5 - adjacent benzene 2 formyl imine methyl - 2 - oxazole hydride ketone (6). Then (4) and (6) condensation, hydrolysis synthetic rina azole amine. The total yield is increase to 26% comparede to 11% of the reported in the literature. The synthesis process improved the yield and reduced the production cost, which be helpful for industrial production. |
2Â¥2012-11-26 15:18:19
Õ½ÉñÇð±ÈÌØ
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3Â¥2012-11-26 16:17:16
fuxd525
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4Â¥2012-11-30 09:22:34
wangzh327
ľ³æ (СÓÐÃûÆø)
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220chengeng: ½ð±Ò+2, ¸ÐлӦÖú£¬ÐÁ¿à¡£ 2012-12-01 21:38:12
fuxd525: ½ð±Ò+25, ·ÒëEPI+1, ¡ï¡ï¡ïºÜÓаïÖú 2012-12-04 08:53:32
Carena: ½ð±Ò+10, ½ð±Ò´ú·¢ 2013-01-12 22:07:17
220chengeng: ½ð±Ò+2, ¸ÐлӦÖú£¬ÐÁ¿à¡£ 2012-12-01 21:38:12
fuxd525: ½ð±Ò+25, ·ÒëEPI+1, ¡ï¡ï¡ïºÜÓаïÖú 2012-12-04 08:53:32
Carena: ½ð±Ò+10, ½ð±Ò´ú·¢ 2013-01-12 22:07:17
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ÒÔÂð·ÈßøºÍ3,4-¶þ·úÏõ»ù±½ÎªÔÁÏ£¬¾È¡´ú£¬»¹Ô£¬Öصª»¯-±»¯·´Ó¦ºÏ³ÉÖмäÌå3-·ú-4-Âðßø»ùäå±½(4)£»ÒÔ(R)-»·ÑõÂȱûÍé¡¢ÇèËá¼Ø¡¢ÁÚ±½¶þ¼×õ£Ñǰ·¼ØÑÎΪÔÁϺϳÉÖмäÌå(R)-5-ÁÚ±½¶þ¼×õ£Ñǰ·¼×»ù-2-‡fßòÍéͪ(6)¡£È»ºó¶Ô(4)ºÍ(6)½øÐÐËõºÏ¡¢Ë®½âºÏ³ÉÀûÄÎßò°·¡£×ÜÊÕÂÊÓÉÎÄÏ×±¨µÀµÄ11%×óÓÒÌá¸ßÖÁ26%¡£¸ÃºÏ³É¹¤ÒÕÌá¸ßÁË·´Ó¦ÊÕÂÊ£¬½µµÍÁËÉú²ú³É±¾£¬ÓÐÀûÓÚ¹¤Òµ»¯Éú²ú¡£ It can synthetize intermediates 3 - fluorine - 4 - morpholine base bromobenzene(4) through substitution, reduction and diazotization - halogenating reaction with morphine Lin and 3, 4 - two fluorine nitrobenzene£»Also£¬It can synthetize the intermediates (R)-5-adjacent benzene 2 formyl imine methyl - 2 - oxazole hydride ketone(6)with (R)-epoxy chloropropane, potassium cyanate, adjacent benzene 2 formyl imine potassium¡£Then produce Nye azole amine through condensation, hydrolysis with (4) and (6)¡£There are literatures reported that total aromatics increased from 11% to 26%¡£This synthesis process can not only improve rate of reaction and reduce the cost£¬but also benefit industral production¡£ |
5Â¥2012-11-30 14:52:34














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