Znn3bq.jpeg
±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 258  |  »Ø¸´: 2
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

Ó¦Óû¯Ñ§

Òø³æ (СÓÐÃûÆø)

[½»Á÷] ÇóÓ¢ÎÄ·­ÒëÒ»¶Î

A solid S-methyl derivative (methyl 2-cyano-3- hydroxythiocrotonimidate) of the enol structure of ¢ô was obtained by treating ¢òwith methyl iodide in 4% sodium hydroxide  solution. The ethyl group of ¢ò was lost during this alkylation reaction.
      Upon mild oxidation of ¢ùwith iodine in potassium iodide, a disulfide, which was  characterized as 3,3'-dithiobis [2- (l-hydroxyethylidene)-3-imino propionitrile](¢ú¢ô), was formed.  It was surprising to find that if ¢ò was mildly oxidized in the same manner with iodine in potassium iodide the ethyl group was lost and the same product was formed. The absence of  hydrogen iodide salt formation was demonstrated by a negative halogen analysis.

» ²ÂÄãϲ»¶

ÌìÌìÂòÁãʳ³Ô£¬º¹°¡£¡http://www.taobao.com/go/chn/tbk_channel/food.php?pid=mm_13837522_3271226_10818728&eventid=101865
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ Ó¦Óû¯Ñ§ µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ¿¼Ñе÷¼Á +7 ±ù±ù£¬£¬£¬ 2026-04-07 7/350 2026-04-07 22:15 by dick_runner
[¿¼ÑÐ] »¯¹¤Ñ§Ë¶ 285Çóµ÷¼Á +22 Wisjxn 2026-04-07 22/1100 2026-04-07 21:38 by l_paradox
[¿¼ÑÐ] Ò»Ö¾Ô¸±±¾©2£¬²ÄÁÏÓ뻯¹¤308Çóµ÷¼Á +16 ÐܶþÏëÉϰ¶ 2026-04-04 17/850 2026-04-07 14:58 by BruceLiu320
[¿¼ÑÐ] Ò»Ö¾Ô¸ÎäÀí³µÁ¾×¨Ë¶×Ü·Ö 281 Çóµ÷¼Á +4 Éϰ¶Ñо¿Éú. 2026-04-02 4/200 2026-04-07 09:52 by ¼ÓÓÍÏòδÀ´°¡
[¿¼ÑÐ] 269µç×ÓÐÅÏ¢Çóµ÷¼Á£¬¿Éתרҵ +5 ¶À×Ãwl 2026-04-06 5/250 2026-04-06 17:23 by ÍÁľ˶ʿÕÐÉú
[¿¼ÑÐ] Çóµ÷¼Á£¬Ò»Ö¾Ô¸Ö£ÖÝ´óѧ²ÄÁÏÓ뻯¹¤×¨Ë¶£¬Ó¢¶þÊý¶þ342·Ö£¬ÇóÀÏʦÊÕÁô +19 v12abo 2026-04-02 21/1050 2026-04-06 09:29 by À¶ÔÆË¼Óê
[¿¼ÑÐ] Çóµ÷¼Á +10 Hllºú 2026-04-04 10/500 2026-04-05 20:09 by nepu_uu
[¿¼ÑÐ] Ò»Ö¾Ô¸Çà¿Æ085500£¬³õÊÔ295·Ö£¬¹«¹²¿Î213·Ö +3 Óöµ½µÄÈËÔ¸Íû¶¼Ä 2026-04-05 3/150 2026-04-05 18:45 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 328·Öµ÷¼Á +6 ÃÅmen 2026-04-04 6/300 2026-04-05 13:40 by imissbao
[¿¼ÑÐ] 085400µç×ÓÐÅÏ¢319Çóµ÷¼Á£¨½ÓÊÜ¿çרҵµ÷¼Á£© +5 ÐÇÐDz»Õ£ÑÛà¶ 2026-04-03 6/300 2026-04-04 21:50 by hemengdong
[¿¼ÑÐ] µ÷¼Á +9 19945159693 2026-04-03 10/500 2026-04-04 20:16 by dongzh2009
[¿¼ÑÐ] 342Çóµ÷¼Á +3 Liang7111 2026-04-04 5/250 2026-04-04 19:47 by dongzh2009
[¿¼ÑÐ] 282Çóµ÷¼Á +20 ycy1201 2026-04-01 22/1100 2026-04-04 00:42 by userper
[¿¼ÑÐ] 311Çóµ÷¼Á +20 zchqwer 2026-04-01 22/1100 2026-04-03 22:09 by lglzsd
[¿¼ÑÐ] 335Çóµ÷¼Á +7 ÉòÇåÁ§ 2026-04-03 7/350 2026-04-03 18:55 by lijunpoly
[¿¼ÑÐ] Ò»Ö¾Ô¸¸´µ©²ÄÁÏ£¬Ó¢Ò»×¨Ë¶£¬×Ü·Ö357µ÷¼Á +4 1050389037 2026-04-02 5/250 2026-04-02 21:40 by dongzh2009
[¿¼ÑÐ] Ò»Ö¾Ô¸Î人Àí¹¤0856£¬³õÊÔ334 +3 26¿¼ÑвÄÁÏ 2026-04-02 3/150 2026-04-02 21:22 by dongzh2009
[¿¼ÑÐ] Ò»Ö¾Ô¸±±¾©¿Æ¼¼´óѧ085601²ÄÁϹ¤³ÌÓ¢Ò»Êý¶þ³õÊÔ×Ü·Ö335Çóµ÷¼Á +9 Ë«ÂíβƦÀϰå2 2026-04-01 9/450 2026-04-02 12:14 by oooqiao
[¿¼ÑÐ] ²ÄÁϵ÷¼Á +12 Ò»ÑùYWY 2026-04-01 12/600 2026-04-02 09:15 by olim
[¿¼ÑÐ] 08ÉúÎïÓëҽҩר˶³õÊÔ346ÕÒµ÷¼Á +6 dianeeee 2026-04-01 7/350 2026-04-02 08:23 by guoweigw
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û