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n制备TLC跑过了怎么办

B-烟酰胺单核苷酸的制备

b、脱乙酰基(制备烟酸乙酯核苷)： 5℃，向步骤a制得的含有烟酸乙酯三乙酰核苷的溶液中滴加乙醇钠溶液(由17.1g，251mmol乙醇钠溶于160mL乙醇制得)，滴加过程放热，控制温度在0℃以下，约0.5小时加完，滴加完毕，-5℃搅拌反应1...

由腈制备脒_was__The

the cyano adamantane 4(4.83 g,30 mmol)was added in 10 mL PhMe and the mixture was heated to 80 C under Ar for 18 h(TLC).The mixture was poured into a slurry of SiO2(15 g)and CHCl3(50 mL)and after 5 min silica ...

磺酰氯的制备方法汇总

hept-2-enoate hydroiodide(70.2 g)(E:Z=1:1 mixture)as slightly yellow oil.This sample was then dissolved in AcOH(1000 mL),chlorine gas was bubbled into the mixture at 0-10℃,TLC indicate the reaction completed....

硫醚氧化制备砜_the_mmol_based

General Procedure for the Preparation of Sulfones.To the mixture of sulfide(1 mmol)and TAPC(0.1 mmol,0.035 g)was added 30%H2O2(2 mmol,0.2 mL).The mixture was stirred at room temperature for the appropriate ...

酰胺脱水制备腈_the

To a mixture of compound amide(287 mg,1 mmol),Et3N(470 mg,4.5 mmol)in anhydrous DCM(4 mL)was added TFAA(0.44 g,2 mmol)at 0℃ with stirring.The resulting mixture was warmed to room temperature and stirred for 12...

腺嘌呤磷酸盐的制备|乙酸|烷化剂_网易订阅

滴毕，保持温度在80℃搅拌反应，TLC监测反应过程，8h后，冷却后，抽滤，得深黄色固体，经红外灯干燥后，固体总量为19g。腺嘌呤磷酸盐的精制 取腺嘌呤磷酸盐的粗品8g，加入乙醇200ml，加热至沸，趁热过滤除去醇不溶物。滤液中...

由醛肟制备腈_was_mmol_The

after which triflic anhydride(0.4-1.0 mmol)was added dropwise via syringe under nitrogen,and the reaction mixture was allowed to stir at r.t.for a specific time(Table 1).Progress of the reaction was monitored ...

常见的几种活化DMSO氧化醇制备醛酮的方法_Org_Moffatt

2 equiv.of dry DMSO and 1.8 equiv.of P2O5 are sequentially added over a stirred ca.0.2 M solution of 1 equiv.of the starting alcohol in dry DCM,kept over an ice-water bath and under a blanket of an inert gas....

简单利用芳香醛和脂肪醛酮制备芳基酮的方法_ketone

aldehyde/ketone(1.0 equiv.).The reaction mixture was stirred at room temperature until complete conversion was observed by TLC.Solvents were removed in vacuo to give the Tosylhydrazone compound. General ...

【反应汇总】常见的几种活化DMSO氧化醇制备醛酮的方法_Moffatt_Org_

2 equiv.of dry DMSO and 1.8 equiv.of P2O5 are sequentially added over a stirred ca.0.2 M solution of 1 equiv.of the starting alcohol in dry DCM,kept over an ice-water bath and under a blanket of an inert gas....