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´óÉñ°ïæ·ÒëÒ»ÏÂ×îºóÒ»¾äÊÇʲôÒâ˼£¬ÊÇÓöþÂȼ×ÍéÖØ½á¾§°¡»¹ÊÇÓÃÐýתÕô·¢ÒÇÐý×ßÈܼÁ°¡£¬»òÕßÊÇÆäËûµÄÒâ˼£¿ÎªÁ˸üºÃµØ·Ò룬ÎÒ°ÑÕû¶Î¸´ÖÆÉÏ£¬Çó´óÉñ½âÊÍ£¡ÄÜÕû¶Î¸ø·Òë×îºÃ£¡ A mixture of 5.5 g of selenium dioxyde(49.9 mmol) in 50 ml dioxane and 2 ml water was added in small portions over 10 minutes to a boiling solution of 4.4 g (30.7mmol) of 2-methylquinoline in 20 ml dioxane. After 6 hours of boiling, the warm reaction mixture was filtered. The filtrate was evaporated, dissolved in dichloromethane and filtered through Alox. The yellow-brown solid product obtained after evaporation of the solvent was recrystallized from dichlormethane. |
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2Â¥2015-11-28 20:22:28
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3Â¥2015-11-28 20:23:15
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4Â¥2015-11-28 23:06:35
jnxybsf
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xinsuihou(fjtony163´ú·¢): ½ð±Ò+20, ´ú·¢ 2016-03-16 16:52:44
fjtony163: ·ÒëEPI+1, ´ú·¢ 2016-03-16 16:52:53
xinsuihou(fjtony163´ú·¢): ½ð±Ò+20, ´ú·¢ 2016-03-16 16:52:44
fjtony163: ·ÒëEPI+1, ´ú·¢ 2016-03-16 16:52:53
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The yellow-brown solid product obtained after evaporation of the solvent was recrystallized from dichlormethane. ÈܼÁÕô·¢Ëù»ñµÃµÄ»Æ×ØÉ«¹ÌÌå²úÎïÊÇ´Ó¶þÂȼ×ÍéÖÐÖØ½á¾§µÃµ½µÄ¡£ |

6Â¥2015-11-30 09:29:37
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- ³æºÅ: 1946330
- ×¢²á: 2012-08-19
- ÐÔ±ð: GG
- רҵ: Äý¾Û̬ÎïÐÔI:½á¹¹¡¢Á¦Ñ§ºÍ
7Â¥2015-12-04 01:19:17
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- ×¢²á: 2012-08-19
- ÐÔ±ð: GG
- רҵ: Äý¾Û̬ÎïÐÔI:½á¹¹¡¢Á¦Ñ§ºÍ
8Â¥2015-12-04 01:21:10













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