±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 692  |  »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] »¯Ñ§µ÷¼ÁÇóÖú +8 LULONG1 2026-04-03 8/400 2026-04-06 10:26 by dongzh2009
[¿¼ÑÐ] ²ÄÁϹ¤³Ì302·ÖÇóµ÷¼Á +9 zyxÉϰ¶£¡ 2026-04-04 9/450 2026-04-05 22:08 by ×íÎÌwl
[¿¼ÑÐ] 277Çóµ÷¼Á +5 ¿¼Ñе÷¼Álxh 2026-04-05 5/250 2026-04-05 19:03 by chy09050039
[¿¼ÑÐ] 266·Ö£¬Ò»Ö¾Ô¸µçÆø¹¤³Ì£¬±¾¿Æ²ÄÁÏ£¬Çó²ÄÁÏרҵµ÷¼Á +8 ÍÛºôºßºôºß 2026-04-02 9/450 2026-04-05 17:14 by lbsjt
[¿¼ÑÐ] 358Çóµ÷¼Á +7 Çïgk 2026-04-04 7/350 2026-04-05 13:29 by huangmoli
[¿¼ÑÐ] 318Çóµ÷¼Á +11 ykyhsa 2026-04-05 13/650 2026-04-05 12:44 by aidndnjck
[¿¼ÑÐ] 312Çóµ÷¼Á +3 Say Never 2026-04-04 3/150 2026-04-05 11:19 by guoweigw
[¿¼ÑÐ] ¿¼Ñе÷¼Á +3 mcbbc 2026-04-04 3/150 2026-04-05 10:03 by barlinike
[¿¼ÑÐ] 319Çóµ÷¼Á +4 ÐÇÐDz»Õ£ÑÛà¶ 2026-04-03 4/200 2026-04-04 16:25 by ÖзÉÔº¿Õ¹ÜѧԺÑ
[¿¼ÑÐ] Ò»Ö¾Ô¸¶«±±´óѧ085901ÍÁľר˶345Çóµ÷¼Á +3 zxt11111 2026-04-04 3/150 2026-04-04 14:21 by ÍÁľ˶ʿÕÐÉú
[¿¼ÑÐ] 334Çóµ÷¼Á +8 ÔøÑöÖ® 2026-04-03 8/400 2026-04-04 11:16 by w_xuqing
[¿¼ÑÐ] 0856µ÷¼Á +8 ÇúÌýóÞ 2026-03-30 8/400 2026-04-04 08:46 by tianyyysss
[¿¼ÑÐ] Çóµ÷¼Á +9 akdhjs 2026-03-31 11/550 2026-04-03 13:32 by akdhjs
[¿¼ÑÐ] 313Çóµ÷¼Á +3 ¡«Î¢Î¢Á¹¡« 2026-04-03 3/150 2026-04-03 11:25 by à£à£à£0119
[¿¼ÑÐ] ר˶ 351 086100 Ò²ÊÇ¿¼µÄ²Ä¿Æ»ù ±¾¿ÆÒ²ÊDzÄÁÏ +8 202451007219 2026-04-02 8/400 2026-04-03 09:50 by À¶ÔÆË¼Óê
[¿¼ÑÐ] Ò»Ö¾Ô¸°²»Õ´óѧ0817»¯Ñ§¹¤³ÌÓë¼¼Êõ£¬Çóµ÷¼Á +14 ÎÒ²»ÊÇÖ»Òò 2026-04-02 15/750 2026-04-03 09:49 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 08¹¤¿ÆÇóµ÷¼Á290·Ö +5 1314Åõ»¨ 2026-04-02 8/400 2026-04-02 13:16 by ÇÇßÕßÕßÕ
[¿¼ÑÐ] Ò»Ö¾Ô¸9³õÊÔ366 ±¾Ë«·ÇÇóµ÷¼Á +4 ÔËÆøÀ´µÃÈôÓÐËÆÎ 2026-04-02 4/200 2026-04-02 09:56 by guanxin1001
[¿¼ÑÐ] °²È«¹¤³Ì 285 Çóµ÷¼Á +3 Xinyu56 2026-04-01 4/200 2026-04-01 21:50 by ¾²¾²¾²¾²¾²¾²¾²¾
[¿¼ÑÐ] 349Çóµ÷¼Á +6 ³ÔµÄ²»ÉÙ 2026-04-01 6/300 2026-04-01 17:55 by JYD2011
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û