Znn3bq.jpeg
²é¿´: 701  |  »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] 297Çóµ÷¼Á +26 GENJIOW 2026-04-07 29/1450 2026-04-09 21:00 by 286640313
[¿¼ÑÐ] 291 Çóµ÷¼Á +11 »¯¹¤2026½ì±ÏÒµÉ 2026-04-09 11/550 2026-04-09 20:59 by angeltong
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤301·ÖÇóµ÷¼ÁԺУ +33 ´ÌÍ´jk 2026-04-06 34/1700 2026-04-09 18:31 by hy861222
[¿¼ÑÐ] 085402ͨÐŹ¤³Ìµ÷¼Á£¬ÓÐ4Ïîѧ¿Æ¾ºÈü¹ú½±£¨µçÈü¹ú¶þ£©£¬Ë¶Ê¿Ñо¿Éúµ÷¼Á×Ô¼öÐÅ¡£ +3 mÓÀo²»vÑÔoÆúm 2026-04-09 3/150 2026-04-09 17:17 by ×ÏêØ×ÏÆå
[¿¼ÑÐ] 288Çóµ÷¼Á£¬Ò»Ö¾Ô¸»ªÄÏÀí¹¤´óѧ071005 +15 ioodiiij 2026-04-08 15/750 2026-04-09 15:54 by gdupt2023
[¿¼ÑÐ] 291Çóµ÷¼Á +7 ¹ØÒä±±. 2026-04-09 8/400 2026-04-09 15:17 by ̽123
[¿¼ÑÐ] Ò»Ö¾Ô¸Î÷ÄÏ´óѧÉúÎïѧѧ˶344 ÇóÉúÎïѧÏà¹Øµ÷¼Á/ÉúÎïÓëÒ½Ò© +7 ³¬È˲»»á·É@ 2026-04-08 7/350 2026-04-09 09:35 by gong120082
[¿¼ÑÐ] 353Çóµ÷¼Á +8 Çç¿ÕÍòÀïair 2026-04-07 8/400 2026-04-09 00:18 by GouQ
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÄÏʦ·¶´óѧ0702ÎïÀíѧ305µ÷¼Á +4 Äî³£°² 2026-04-07 6/300 2026-04-08 22:53 by bljnqdcc
[¿¼ÑÐ] Ò»Ö¾Ô¸211£¬0703»¯Ñ§305·ÖÇóµ÷¼Á +20 ÑÏÎ÷Î÷Ï· 2026-04-06 26/1300 2026-04-08 22:12 by ¿­¿­Òª±ä˧
[¿¼ÑÐ] 293Çóµ÷¼Á +3 ÓÂÔ¶¿â°®314 2026-04-06 3/150 2026-04-07 11:15 by hugr
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÖÐũҵ´óѧ0710£¨A£©³õÊÔ329·Ö Çóµ÷¼Á +5 Ò»Ãû26¿¼ÑÐÉú 2026-04-04 5/250 2026-04-07 08:54 by 18828373951
[¿¼ÑÐ] »ªÄÏÀí¹¤0703»¯Ñ§£¬×Ü·Ö336Çóµ÷¼Á +10 ÊÖ»úÓû§ 2026-04-03 11/550 2026-04-06 22:20 by michael2011
[¿¼ÑÐ] £¨µ÷¼Á£©Ò»Ö¾Ô¸±¨¿¼¹þ¶û±õ¹¤Òµ´óѧ0857×ÊÔ´Óë»·¾³×¨Òµ378·Ö¿¼Éú +7 ºÝºÝ¼ÓÓÍ 2026-04-05 8/400 2026-04-06 16:52 by momoð©
[¿¼ÑÐ] 283Çóµ÷¼Á +5 baiiyu 2026-04-05 6/300 2026-04-05 20:35 by à£à£à£0119
[¿¼ÑÐ] 308Çóµ÷¼Á +3 ÖÕ²»ËÆ´Óǰ 2026-04-05 3/150 2026-04-05 20:07 by à£à£à£0119
[¿¼ÑÐ] 11408,335·Ö£¬±¾¿Æ211£¬Çóµ÷¼Á£¬¿Éתרҵ +5 öùÀæ´óöùÓã 2026-04-03 5/250 2026-04-04 22:49 by chongya
[¿¼ÑÐ] Ò»Ö¾Ô¸»¦9£¬ÇóÉúÎïѧµ÷¼Á£¬326·Ö +6 Áõīī 2026-04-04 6/300 2026-04-04 19:44 by ÌÆãå¶ù
[¿¼ÑÐ] ²ÄÁÏרҵ383Çóµ÷¼Á +8 ¹ùÑôÑôÑô³É 2026-04-03 8/400 2026-04-04 10:29 by Rednal.
[¿¼ÑÐ] ר˶085601Çóµ÷¼Á +7 suyifei 2026-04-03 8/400 2026-04-03 14:00 by ÐÀϲ777
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û