另外在胺存在下,利用乙酸酐和Amberlyst 15树脂,醇也可被酯化。【Synth. Commun.,22, 2703(1992)】 五、乙酸酐在路易斯酸(如高氯酸镁【Tetrahedron,59,7661(2003)】或InCl3【Tetrahedron Lett.,44, 6749(2003)】)催化下可以对酚进行酯化。 六,碘,乙酸酐,微波下2-4分钟,94-98%产率。此方法特别适用于高位阻...
S. Tamagaki, T. Negoro, S. Kozuka,Tetrahedron, 1970, 26, 4051.doi.org/10.1016/S0040-4020(01)93045-5. c) C. Fontenas, E. Bejan, H. AïtHaddou, G. G. A. Balavoine,Synth, Commun.1995,25,629.doi.org/10.1080/00397919508011399; ...
首先,在对位上具有不同取代的苯基碘化物,如给电子基团(Me,OMe,tBu)和吸电子基团(CN,F,CO2Me,COMe)均可以耐受,获得相应的产物4–10。同样,在间位取代基(甲氧基,3,5-二氟和3-氟和3,5-二甲基二羧酸酯),也可获得产物11–14。同时,一些经典交叉偶联反应中通常使用的官能团,如硼烷、卤素等,均可...
[59] P. Wang, Y. Feng, Z. Cheng, Q. Wu, G. Wang, L. Liu, J. Dai, J. Xu, H. Xu, J. Org. Chem. 2015, 80, 9314. doi:10.1021/acs.joc.5b01387. [60] X. Li, S. Li, S. Sun, F. Yang, W. Zhu, Y. Zhu, Y. Wu, Y. Wu, Adv. Synth. Catal. 2016, 35...
(HIS) 50UG170150UGA1371301SYNTH A FREEZE CTS TM 50ML170150ML16170060BOVINE SERUM 1L17021LGEN002007DIMETHYLFORMAMIDE 2.5L EACH1702EACHA7592ACTINOMYCIN D 10 MG170310 MGD37932-(4,4-DIFLUORO-5-METHYL- 100 UG1703100 UGO34782OVALBUMIN, ALEXA FLUOR 2 MG17032 MGO23021OVALBUMIN, TEXAS RED C 5 MG17045...
Vickers PARKER FTBE 2A 10Q Siempelkamp进口配件NO,08-27094-1-1 221/RUL oil type SYNTHFS0D100EP ATLING外筒AX7E-NAOS Rittal SV3457.500 WAL612895 WF-WD 16S NBR BOSCH换向阀820212001换向阀Bosch Rexroth AG. PEPPERL+FUCHS备件LVL-A1-G1S-E5PG-WH ROFA 12B-2; ;10E; gerade Laschen KAS-40-A24-...
优势产品 synthy polymer 402 DA 1KG优势产品 R5T285L383-003(1/4)-00-8HN34(双支)优势产品 374346优势产品 J400-S156B优势产品 H41D1优势产品 XALIS 3400P1优势产品 S92-1190优势产品 10-B13优势产品 DG4V-3-2N-M-U1-B-7-54优势产品 M12-C612优势产品 S92-0830优势产品 S40-466D DN125优势产品 ...
Thermo K1641 MAXIMA 1STR CDNA SYNTH KIT EA ￥3,512.00 EA Thermo EN0602 RNASE I EA ￥3,516.00 EA Thermo K1671 MAXIMA FIRST STRAND CDNA SYNTHESIS KIT WITH DSDNASE ￥3,711.00 SYNTHESIS KIT WITH DSDNASE Thermo K2822 MAGJET NGS CLEANUP AND SIZE SELECTION KIT ￥3,719.00 SELECTION KIT Thermo ...
S3004CHR: 4-I/O slot Rack/Chassis (64 I/O max) S3008CHR: 8-I/O slot Rack/Chassis (128 I/O max) S3016CHR: 16-I/O slot Rack/Chassis (256 I/O max) PS3007: Power Supply S3012-BR: Processor Board S3016: Communications CO-CPU ...
WT1400 10:1 1L V2 22190A700114 synth. Ol??Mobilgear SHC XMP150 3068563 II2 D/G T4 SOFIMAFAM13MNB50 atosDHA-0751/224/7MDC24V1/2L+B2442KM1G5KL+B2443EKRG5G L+B2443SKRG3K schneiderA013256schneiderA013250SOLDOSB0120LORENZ MESSTECHNIK K-1774 1KN 10V 55938 LORENZ MESSTECHNIKD-1673 10Nm (...