Znn3bq.jpeg
²é¿´: 705  |  »Ø¸´: 3
±¾Ìû²úÉú 1 ¸ö ·­ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

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

°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
²é¿´È«²¿ 4 ¸ö»Ø´ð

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

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
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 282£¬Çóµ÷¼Á +8 jggshjkkm 2026-04-09 9/450 2026-04-10 02:10 by belle15
[¿¼ÑÐ] Çóµ÷¼Á +4 ôæôæÒ»ÊéÉú 2026-04-09 4/200 2026-04-10 00:07 by lwk2004
[¿¼ÑÐ] ¼ÆËã»úÀàÇóµ÷¼Á£¬22408-274·Ö +5 Éϰ¶deС³æ 2026-04-09 6/300 2026-04-09 20:48 by xujun0624
[¿¼ÑÐ] 070300»¯Ñ§ Çóµ÷¼Á +13 73372112 2026-04-08 13/650 2026-04-09 20:22 by maddjdld
[¿¼ÑÐ] 314Çóµ÷¼Á +20 wakeluofu 2026-04-09 21/1050 2026-04-09 16:14 by zhuimr
[¿¼ÑÐ] 280Çóµ÷¼Á +7 wzzzÍõ 2026-04-09 7/350 2026-04-09 15:32 by ÊÍ·ÅÌìÐÔ
[¿¼ÑÐ] 327Çóµ÷¼Á +10 Xxjc1107. 2026-04-06 11/550 2026-04-09 01:21 by lature00
[¿¼ÑÐ] 275 Çóµ÷¼Á +8 Lei812514 2026-04-07 8/400 2026-04-08 12:46 by chemisry
[¿¼ÑÐ] ר˶085403£¬291·Ö£¬ÓÐÁ½Æª×¨Àû£¬Ò»¹úÒ»½± +3 ¹þ¼ªßä¹þ¼ªßä 2026-04-07 3/150 2026-04-07 18:21 by À¶ÔÆË¼Óê
[¿¼ÑÐ] ²ÄÁϵ÷¼Á +11 Ò»ÑùYWY 2026-04-07 11/550 2026-04-07 15:13 by shdgaomin
[¿¼ÑÐ] µ÷¼Á +4 mcbbc 2026-04-06 5/250 2026-04-07 12:33 by upczlm1989
[¿¼ÑÐ] Ò»Ö¾Ô¸±±½»´ó²ÄÁϹ¤³Ì×Ü·Ö358Çóµ÷¼Á +10 cs0106 2026-04-05 12/600 2026-04-06 19:41 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] 331Çóµ÷¼Á +8 ÓÚÕ÷yz 2026-04-05 8/400 2026-04-06 00:54 by fmesaito
[¿¼ÑÐ] 283Çóµ÷¼Á +5 baiiyu 2026-04-05 6/300 2026-04-05 20:35 by à£à£à£0119
[¿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] 313Çóµ÷¼Á +5 º£ÈÕº£ÈÕ 2026-04-04 7/350 2026-04-05 13:58 by imissbao
[¿¼ÑÐ] 288Çóµ÷¼Á£¬Ò»Ö¾Ô¸»ªÄÏÀí¹¤´óѧ071005 +6 ioodiiij 2026-04-04 6/300 2026-04-05 10:09 by guoweigw
[¿¼ÑÐ] ²ÄÁϵ÷¼Á +9 ¸ï΢¹ð 2026-04-04 9/450 2026-04-05 08:27 by 544594351
[¿¼ÑÐ] ¿¼Ñе÷¼Á +4 zybz³å³å³å 2026-04-03 6/300 2026-04-04 13:08 by zybz³å³å³å
[¿¼ÑÐ] 313Çóµ÷¼Á +3 ¡«Î¢Î¢Á¹¡« 2026-04-03 3/150 2026-04-03 11:25 by à£à£à£0119
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û