推薦產品
![1,3-Bis[3,5-bis(trifluoromethyl)phenyl]thiourea](/deepweb/assets/sigmaaldrich/product/structures/191/427/0218c99c-65b9-4963-938c-c47a5790dfc5/640/0218c99c-65b9-4963-938c-c47a5790dfc5.png)
![1-[3,5-bis(trifluoromethyl)phenyl]-3-[(1R,2R)-(-)-2-(dimethylamino)cyclohexyl]thiourea AldrichCPR](/deepweb/assets/sigmaaldrich/product/structures/236/021/d944889d-2233-4700-9f2c-caa3652d0124/640/d944889d-2233-4700-9f2c-caa3652d0124.png)
![1-[3,5-Bis(trifluoromethyl)phenyl]-3-[(1R,2R)-(−)-2-(dimethylamino)cyclohexyl]thiourea](/deepweb/assets/sigmaaldrich/product/structures/384/772/d336462c-f438-446d-be0c-4064705213cc/640/d336462c-f438-446d-be0c-4064705213cc.png)
![(S)-2-[[3,5-双(三氟甲基)苯基]硫脲基]-N-苄基-N,3,3-三甲基丁酰胺 97%](/deepweb/assets/sigmaaldrich/product/structures/373/888/118b46f2-6c2e-4a87-8266-c4dbcd5db51f/640/118b46f2-6c2e-4a87-8266-c4dbcd5db51f.png)
![N-[3,5-双(三氟甲基)苯基]-N′-[(8a,9S)-6′-甲氧基-9-金鸡宁]硫脲 90%](/deepweb/assets/sigmaaldrich/product/structures/634/236/e688c89f-a93b-4698-a6fc-48e479a875cb/640/e688c89f-a93b-4698-a6fc-48e479a875cb.png)
![N-[(1R,2R)-2-(1-哌啶基）环己基]-N′-[4-（三氟甲基）苯基]四酰胺 95%](/deepweb/assets/sigmaaldrich/product/structures/238/480/7149c9c0-8769-418a-a96c-77c15dd50cd0/640/7149c9c0-8769-418a-a96c-77c15dd50cd0.png)
品質等級
化驗
95%
形狀
powder or crystals
反應適用性
reagent type: catalyst
環保替代產品特色
Catalysis
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
mp
170 °C
環保替代類別
SMILES 字串
S=C(NC1=CC(C(F)(F)F)=CC(C(F)(F)F)=C1)NC2=CC(C(F)(F)F)=CC(C(F)(F)F)=C2
InChI
1S/C17H8F12N2S/c18-14(19,20)7-1-8(15(21,22)23)4-11(3-7)30-13(32)31-12-5-9(16(24,25)26)2-10(6-12)17(27,28)29/h1-6H,(H2,30,31,32)
InChI 密鑰
RWXWQJYJWJNJNW-UHFFFAOYSA-N
一般說明
我们致力于为您提供更环保的替代产品，以符合“绿色化学的12项原则”的一项或多项原则要求。该产品为增强型，提高了催化效率。点击此处以获取更多信息。
應用
硫脲催化剂，也称为Schreiner硫脲，通常在羰基化合物、硝基烯烃、亚胺等的活化中用作氢键供体。
訊號詞
Warning
危險聲明
危險分類
Eye Irrit. 2 - Skin Irrit. 2
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 3
閃點（°F）
Not applicable
閃點（°C）
Not applicable
客戶也查看了
Stefan H Jungbauer et al.
Chemical communications (Cambridge, England), 50(47), 6281-6284 (2014-05-07)
Using a prototypical Diels-Alder reaction as benchmark, we show that dicationic halogen-bond donors are capable of activating a neutral organic substrate. By various comparison experiments, the action of traces of acid or of other structural features of the halogen-bond donor
Peter R Schreiner et al.
Organic letters, 4(2), 217-220 (2002-02-14)
[reaction: see text] A combination of NMR, IR, and ab initio techniques reveals the striking structural similarities of an exemplary H-bonded complex of an N-acyloxazolidinone with an N,N'-disubstituted electron-poor thiourea and the corresponding Lewis acid complex. Although the H-bond association
Alexander Wittkopp et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 9(2), 407-414 (2003-01-18)
We examined the catalytic activity of substituted thioureas in a series of Diels-Alder reactions and 1,3-dipolar cycloadditions. The kinetic data reveal that the observed accelerations in the relative rates are more dependent on the thiourea substituents than on the reactants
Thiophosphoramide-based cooperative catalysts for Brønsted acid promoted ionic Diels-Alder reactions.
Alina Borovika et al.
Angewandte Chemie (International ed. in English), 52(50), 13424-13428 (2013-10-19)
Michael T Corbett et al.
Organic letters, 16(9), 2362-2365 (2014-04-22)
The stereoselective synthesis of trisubstituted 2-trifluoromethyl pyrrolidines by asymmetric Michael addition/hydrogenative cyclization is described. The direct organocatalytic addition of 1,1,1-trifluoromethylketones to nitroolefins proceeds under mild reaction conditions and low catalyst loadings to provide Michael adducts in high yield with excellent
我們的科學家團隊在所有研究領域都有豐富的經驗，包括生命科學、材料科學、化學合成、色譜、分析等.
聯絡技術服務