±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 693  |  »Ø¸´: 3
±¾Ìû²úÉú 1 ¸ö ·­ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴

zypzyb

½ð³æ (ÕýʽдÊÖ)

´óÍ·¹í

[ÇóÖú] Ò»¾ä»°·­Òë

For a four and five fold excess of trityl chloride a DS of nearly 1 was obtained. Higher amounts of trityl chloride resulted in a DS of 1.22 and 1.30 for a six fold excess and a DS of 1.26 and 1.37 for a nine fold excess

» ²ÂÄãϲ»¶

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

hyt0615

½ð³æ (³õÈëÎÄ̳)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¶ÔÓÚ4ºÍ5±¶¹ýÁ¿µÄÈý±½¼×»ùÂȽӽüÓÚ1µÄDS¿É»ñµÃ¡£¸ü¸ßÁ¿µÄÈý±½¼×»ùÂÈ»á²úÉú¸ü¶àDS£¬ÈçÁù±¶¹ýÁ¿¿É²úÉú1.22ºÍ1.30µÄDS£¬¾Å±¶¹ýÁ¿¿É²úÉú1.26ºÍ1.37µÄDS¡£

DSÊÇʲôÒâ˼ûÓв鵽£¬ÊÇ·ñ¿ÉÖ¸½Ì£¿
2Â¥2013-07-23 12:19:35
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

°åµÊ·Ëͽ

гæ (³õÈëÎÄ̳)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï
zypzyb: ½ð±Ò+5, ·­ÒëEPI+1, ¡ï¡ï¡ïºÜÓаïÖú 2013-07-23 16:04:43
ʹÓÃËı¶¹ýÁ¿ºÍÎå±¶¹ýÁ¿µÄÈý±½¼×»ùÂȵõ½µÄDS½Ó½ü1¡£Ê¹Óøü¶àÁ¿µÄÈý±½¼×»ùÂȵõ½µÄDSΪ1.22ÖÁ1.30£¨Áù±¶¹ýÁ¿£©ºÍ1.26ÖÁ1.37£¨¾Å±¶¹ýÁ¿£©¡£
3Â¥2013-07-23 12:19:49
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

zypzyb

½ð³æ (ÕýʽдÊÖ)

´óÍ·¹í

ÒýÓûØÌû:
2Â¥: Originally posted by hyt0615 at 2013-07-23 12:19:35
¶ÔÓÚ4ºÍ5±¶¹ýÁ¿µÄÈý±½¼×»ùÂȽӽüÓÚ1µÄDS¿É»ñµÃ¡£¸ü¸ßÁ¿µÄÈý±½¼×»ùÂÈ»á²úÉú¸ü¶àDS£¬ÈçÁù±¶¹ýÁ¿¿É²úÉú1.22ºÍ1.30µÄDS£¬¾Å±¶¹ýÁ¿¿É²úÉú1.26ºÍ1.37µÄDS¡£

DSÊÇʲôÒâ˼ûÓв鵽£¬ÊÇ·ñ¿ÉÖ¸½Ì£¿

degree of substitution È¡´úÊý
4Â¥2013-07-23 17:01:28
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ zypzyb µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 302·ÖÇóµ÷¼Á Ò»Ö¾Ô¸°²»Õ´óѧ085601 +9 zyxÉϰ¶£¡ 2026-04-04 9/450 2026-04-06 13:05 by Öí»á·É
[¿¼ÑÐ] µ÷¼Á +9 ²»·ê´º 2026-04-05 10/500 2026-04-06 11:58 by ¿¼ÑÐѧУÕеãÈË
[¿¼ÑÐ] 316Çóµ÷¼Á +5 yyxÏëµ÷¼Á 2026-04-05 5/250 2026-04-05 22:22 by ßÇßÇßÇßÇ9
[¿¼ÑÐ] ÉúÎïÓëÒ½Ò©086000µ÷¼ÁÒ»Ö¾Ô¸Î÷±±Å©ÁÖ320·Ö +3 ÃÀÃÀŮʿ 2026-04-03 3/150 2026-04-05 21:55 by ѧԱ8dgXkO
[¿¼ÑÐ] ²ÄÁÏ»¯¹¤306·ÖÕÒºÏÊʵ÷¼Á +14 ²×º£ÇáÖÛe 2026-04-04 14/700 2026-04-05 09:53 by ÖìÔÆ»¢202
[¿¼²©] É격 +7 IQwQl 2026-04-04 7/350 2026-04-04 23:32 by mumin1990
[¿¼ÑÐ] 324Çóµ÷¼Á +14 ÏëÉÏѧÇóµ÷ 2026-04-02 15/750 2026-04-04 20:31 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] ÇóÉúÎïѧµ÷¼Á +14 15172915737 2026-04-01 14/700 2026-04-04 20:13 by babysonlkd
[¿¼ÑÐ] 302Çóµ÷¼ÁÒ»Ö¾Ô¸»ªÖÐʦ·¶´óѧ +8 С½­Ð¡½­½­½­ 2026-04-02 8/400 2026-04-04 19:50 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 305Çóµ÷¼Á +3 77Qi 2026-04-03 3/150 2026-04-03 23:01 by qzxyhcsy
[¿¼ÑÐ] ÊÞÒ½µ÷¼Á +3 wh119216 2026-04-02 3/150 2026-04-03 19:34 by zrongyan
[¿¼ÑÐ] Çóµ÷¼Á +8 akdhjs 2026-04-03 8/400 2026-04-03 18:17 by ´÷άING
[¿¼ÑÐ] 315Çóµ÷¼Á +6 ˳Àí³ÉÕÅ 2026-04-03 8/400 2026-04-03 14:04 by °ÙÁéͯ888
[¿¼ÑÐ] Ò»Ö¾Ô¸±±¾©½»Í¨´óѧ²ÄÁϹ¤³Ì×Ü·Ö358 +4 cs0106 2026-04-03 4/200 2026-04-03 13:41 by °ÙÁéͯ888
[¿¼ÑÐ] 330Çóµ÷¼Á +3 °×ÉñÎØºôºô 2026-04-02 3/150 2026-04-03 10:15 by À¶ÔÆË¼Óê
[¿¼²©] É격ÇóÖú +3 Reee1Llll 2026-04-01 3/150 2026-04-02 22:29 by ÕâÊÇÒ»¸öÎÞÁĵÄê
[¿¼ÑÐ] Çóµ÷¼Á£¬Ò»Ö¾Ô¸ÄϾ©Ê¦·¶´óѧ¼ÆËã»úר˶£¬³õÊÔ373£¬Áù¼¶Í¨¹ý£¬ +3 ¼ÆËã»ú×·ÃÎÈË 2026-04-01 3/150 2026-04-02 07:57 by fxue1114
[¿¼ÑÐ] 08¹¤¿Æ£¬295£¬½ÓÊÜ¿çרҵµ÷¼Á +6 lmnlzy 2026-03-31 6/300 2026-04-01 11:02 by ÄæË®³Ë·ç
[¿¼ÑÐ] Ò»Ö¾Ô¸´óÁ¬Àí¹¤´óѧ£¬»úе¹¤³Ìѧ˶£¬341 +3 Î÷¹ÏÌïµÄÊØÍûÕß 2026-03-30 3/150 2026-03-31 11:08 by asdfzly
[¿¼ÑÐ] Ò»Ö¾Ô¸Öк£Ñó320»¯Ñ§¹¤³ÌÓë¼¼Êõѧ˶Çóµ÷¼Á +8 ÅûÐÇºÓ 2026-03-30 8/400 2026-03-31 08:53 by lbsjt
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û