2009-01-01ãã1ã¶æéã®è¨äºä¸è¦§
4å¹´çã«ãã輪è¬ã [2+2]é£ããã§ãï¼ï¼
é¢ã®ææ¥ã§ããã ãã¯ãã£ã¦ç ããªãã¾ãããåããã¾ãã
Mitsunobuåå¿ããããã®ã§ãã ç«ä½ç¹ç°çã«é²ãåå¿ã å ¨ã¦inversionã§åå¿ã¯é²è¡ããã SN1åå¿ã¨ç«¶åããªããã°ã ãã©ã ã¨ãããããåå¿ã¯é²è¡ããã è¡ããããªãã£ããã©ï¼ï¼ æ¢ã¾ã£ãã£ã½ãæã§ã¯ã¨ã³ããã¦ãçµããã ææã«ç²¾è£½ãã¾ãï¼ï¼
ç§ã®å çã®ææ¥ã§ããã æ¬æ¥å¥ã®å çãªãã ãã©ãã¹ã¤ã¹åºå¼µä¸ãªæ ãã¦ãã®å çã代æã ã¾ãããã¤ãéããªæãã§ãããã 主ã«Mannichåå¿ã«ã¤ãã¦ã 使ãããã«ãã£ã¦ã¯ã¢ã¬ãç«ä½ãããªãå¶å¾¡ãã¦ãè¡ã£ã¦ãããã®ãã ããã¾ã使ãæ©ä¼ãªãããã ãã©â¦
NISã使ã£ã¦ã¨ã¦ç´ åã ã¾ãã¯åå¿ãä»è¾¼ãåã«ã¸ã¢ã¹ãã¬ãªãã¼ãåããã æ°è¦ååç©ã ã£ããã©ããã¤ãéãã®æ¹æ³ã§ãã®ã¾ã¾åããããã åãã¦ããåå¿ãä»è¾¼ãã ããããã¤ãéãã«çµäºã 精製ãã«ã©ã 使ã£ããæ®éã«åããããã TLCã§è¦ãã¦ãå¥ã®â¦
å ±åä¼ãããã¾ããã å¦ã¹ãäºã大åæ¸ã£ã¦ãã¾ããã ã¾ããæé·ããâ¦â¦ã®ããªãww
åå¿ãååä¸ã«ä»è¾¼ã¿ãåå¿æéä¸ã«ããããã¨éç¨ãããªããåå¿ãçµãããã¦ã精製ãã¦ã¾ããã ãã³ãã«1æ¥æ®ã©ããã ãã§çµãã£ããªã¼ã åçãæªãã£ããã ã(((((
ãã¨ã¯ã²ãããHPLCæã£ã¦ãã 15æåãã23æéãã¾ã§ã ä»æ¥ã¯æ¶²ã¯ããåéã ã£ããªãâ¦â¦ çµå±ãã¬ã¤ã«åãããªãã£ããã©ã ææ¥ãªãã¤ã¯ããäºå®
ååä¸ã¯ç²¾è£½ã ã«ã©ã ãã£ã¦ã¾ããã ç¡äºã«çµãã£ã¦ãé£ã°ããã ãªã¤ã«ç¶ã«ãªã£ããã©ãæ°ã«ããå¼ã£å¼µã£ã¦ãããã åºä½ã«ãªã£ãï¼ï¼ ãã ããã¨ã§æ°ä»ããã®ã ãããªã¤ã«ã«Hexaneãå ããã¨åºä½ãæåºããäºãåãã£ã¦ããã®ã§ãåæ§ã®ç²¾è£½ããã¦ãåºä½â¦
輪è¬åéã ä»æ¥ã¯æé²ã®ã¿ã 輪è¬ã§ãã«ããã³ã«ãããã¨ããããï¼ï¼ ç§ãããªããã©((((((
åå¿ä»è¾¼ãã ã å²ã¨æãåå¿ã DMF refluxæ¡ä»¶ã DMF:b.p.156â ä»è¾¼ãã§ãµã¯ãã¨å ç±ãã¦refluxã ã¾ããå ç±ããã¨éãã ãã¬ã¤ã«åå¿ã¯é²è¡ã ã¢ããåºæ¥ãã è¶ é«ç´åãã¶ã£å£ããããã ãã©ã¾ãããã¯ä»æ¹ãªã((((( ææ¥ã«ã©ã ã§åãã¾ãã å°å³ã«æéâ¦
輪è¬ãããã¾ããã ãã³ã®ãã¬ã³ã®å ¨åæã«ã¤ãã¦èª¬æãããªã©ããã æå¤ã¨èª¬æããæãå°ãªãï¼ï¼ ãããã§æ¥½ã§ãã^^
é¢ã®ææ¥ã§ããã ããããåå¼·ãå¿ è¦ã ((((( Mizorogi-Heckåå¿ã¯åå¼·ããªãã¨ãããªã
åºæ¬çã«1æ¥ãã³ã¸ã«åã®ã¯ã¼ã¯ã¢ããããã£ã¦ã¾ããã ã¯ã¨ã³ããå液ã精製ã ã¨ãããããåçµæ¶ã¾ã§ãã£ã¦ãNMRåã£ãã å²ã¨ãã¬ã¤ã ã£ãã ã¾ããã·ã³ã°ã¬ãã1æ¬ã ãã©ï¼ï¼ ã«ã¼ãã³ãå§ãã¦ã¨ã£ããã©ããµã³ãã«éå°ãªãã¦ã¡ããã¨ã§ãªãã£ãï¼ï¼ ãâ¦
ææ¥ãããã¾ããã ãã¤ãéãã§ããã
HPLCãæã¡ã¾ããã ãããµã³:é ¢é ¸ã¨ãã«:IPAã®3æåç³»ã§æµãã¦ã¿ãã åãããæãããããã©ã®ãªã®ãªåãããªãï¼ï¼ ã«ã©ã ã2æ¬ã¤ãªãã¦ã¿ãäºã«ãªãããã§ãã
ãã³ã¸ã«åãä»è¾¼ãã ææºåããææ¥è¡ã£ã¦ã帰ã£ã¦ãã¦ããä»è¾¼ãã ã¨ãããããä»è¾¼ã¿çµãã£ã¦ãã ãã ããã³ã¸ã«åãé²è¡ãã¦ããã®ã確èªã åå¿ãã®ãã®ã¯Over Nightã§æ¾ç½®ã ãã®åå¿ãä»è¾¼ãéä¸ãæãï¼ï¼ å¡©åºã«NaHã使ã£ã¦ãããªããæ°´ãå ±åãâ¦
å ±åä¼ã§ããã ã§ãå®é¨å ±åãã¦ãããã ãã©ãNMRã¹ãã¯ãã«åºãã¦ã³ã±ãï¼ï¼
HPLCãæã£ãã ãªãããã¡ãªæãã
åçµæ¶ãããã®ãããåãã ã¨ããããã3æéãããä¹¾ããã¦ãNMR確èªã ã¢ãã¯åºæ¥ã¦ã¾ããã ã¨ãããããæ¾ç½®ãã¦ã第2æ¶ãåãã ã¨ãããã溶ããã¦ã第2æ¶ã¾ã§ã¨ã£ãã
æ¬æ¥ä½¿ããªã溶åªãé ¢é ¸ã¨ãã«ã§æµãã¦ã¿ãã ç¡äºåãããï¼ï¼ CDãããããã£ãã®ã§ãCDã®æ³¢é·ããããã¨ãç¡äºCDãåºãã ããã§ç«ä½åå¦ãeeã決ã¾ãããã ã£ãã®ã ãã ããããåé¡ããããããªã®ã§ããã®ãã¡æã¡ç´ãï¼ï¼ ã¨ãããããç¾ç¶ã®ã¾ã¾ããâ¦
åæãã¢ã»ãã«åãã¦ã次ã®ãã³ã¸ã«åã®æºåã ããªã¸ã³ã«ååç©ã¨ããã¦ãç¡æ°´é ¢é ¸æ¾ãè¾¼ãã§ãDMAP(4-(N,N-ã¸ã¡ãã«ã¢ãã)ããªã¸ã³)ãæ¾ãè¾¼ãã ç¬é溶åªãåºã¾ãã¨ããããwwwww å¤åãã®ç¬éã«åå¿ãçµãã£ã模æ§ã å¡©åã¡ãã¬ã³ãé©éå ããã¹ã¿ã¼ã©â¦
éææ¥ä½ã£ããã®ãã¡ãã«åã é©å½ãªæ¡ä»¶(DMF溶åªãå¡©åºã¨ãã¦NaHãã¡ãã«åå¤ã¨ãã¦CH3I)ã§ã¡ãã«åã å²ã¨æéãããã£ãããåçãæªãã£ããã©ãç¡äºNMRã¯åããã¬ãã«ã§ããã ã§ãèå¿ã®NOEãåã£ããç¡äºã«åºãï¼ï¼ ãããããã¼ã¯ãåç´åãããNMRâ¦
HPLCã§ãããããã æ¨æ¥ã¨ã«ã©ã ãå¤ãã¦ç³»ãæ¢ãã¦ã¿ããã®ã®ãè¦ã¤ãããã ãããã©ã»ãã¨å å¦æ´»æ§ä½ã®Retention Timeãåããªãã ã©ãã«ãããªãã¨ãããªããã ãã©â¦â¦ææã«ãã£ã¡ãæã¡ç´ãããªãâ¦â¦
ã²ããã精製ãã¦ã¾ããã PTLCã§ã¯é常ã«ãã¬ã¤ã«åãããã ã§ãä¹¾ç¥ããã¦NMRåã£ãããã ãã ç¸å¤ãããå¾®å¦ã«æ±ãã ã§ãåçã¯ã¾ãã¾ãã ãã ã欲ãããã®ã¯åãã¦ãã ã¡ãã£ã¨æ§é ãæªããã®ã§ãææã«ã¡ãã«åãã¦NOEã§ç¢ºèªã¨ãã ã
æè¿æããªãæ¥ããªããªww ä»æ¥ã¯åãããç³»ãæ¢ãã¾ãããã2æ¬æã£ã¦ãã¡ã ã£ãã®ã§è«¦ãã¾ããã ææ¥åãããç³»ãè¦ã¤ãã¦ã²ãããæã¡ç¶ããäºå®
NISã§ã¨ã¦ç´ åãä»è¾¼ãã åå¿ãè¡ããããªããããªã«ãã¯åºæ¥ãã ææ¥ç²¾è£½ããã ã
åä½ã£ã¦ãã£ããã®ã1å精製ãã¦ã¢ããåããã ã¾ãç¡äºã«åããã¦æ¬¡ã®åå¿ã¸ã
ã²ãããHPLCãæã¡ç¶ããé¡åä½éå°çã決ãã¦ãã ã¾ããããããããã£ããã åçµæ¶â¦â¦å¤ååºæ¥ã¦ãªãã£ããã ãããªãâ¦â¦
ã¨ããã·åãããã¾ããã ã¨ããããã精製ã¾ã§ãã¦çµããã ææ¥é¡åä½éå°çã調ã¹ãï¼ï¼