Профессиональные поставки Щелочные Химические Реагенты Для 99% проба дБ 1 8 Diazabicyclo[5.4.0]undec 7 ene cas 6674 22 2

Сохранить в закладки 1600508610606:


Цена:25,00 $ - 50,00 $*

Количество:

  • В избранное

Описание и отзывы

Характеристики









Product name
DBU
Cas no.
6674-22-2
Density
1.019 g/mL at 20 °C(lit.)
Melting point
-70 °C
Boiling point
80-83 °C0.6 mm Hg(lit.)


Application:
Colorless to yellow liquid
1,8-Diazabicyclo[5.4.0]undec-7-ene is a bicyclic amidine base. It is non-nucleophilic, sterically hindered, tertiary amine base in organic chemistry. It is reported to be superior to amine catalyst in Baylis-Hillman reaction.It promotes the methylation reaction of phenols, indoles and benzimidazoles with dimethyl carbonate under mild conditions.
1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) may be used: 1. as catalyst for carboxylic acid esterification with dimethyl carbonate
2. in the synthesis of duocarmycin and CC-1065 analogs
3. as catalyst in aza-Michael addition and Knovenegal condensation reaction
4. as base for dehalogenation of halogenated Diels-Alder adducts and the resulting activated 2,4-dienones were subjected to regio- and stereo-directed Michael additions, using Yamamoto′s reagent
(CH3Cu · BF3)
5. in a new synthesis of the ABCD ring system of Camptothecin
6. 1,8-Diazabicyclo[5.4.0]undec-7-ene may be used as an catalyst for the dissolution and activation of cellulose by a reversible reaction of its hydroxyl groups with carbon dioxide. This dissolved cellulose system can be derivatized to form cellulose mixed esters.
7. Used in a new synthesis of the ABCD ring system of Camptothecin.



















Q: When will my goods be shipped?
A:About 3-5 days after prepayment is done.
Q: Can I get a sample?
A: Free samples are available, but buyers needs to pay freight.
Q: How long does it take for me to get a sample?
A: It depends. Generally speaking, it is about 7-10 days.
Q: why is the quote offered different from the sticker price?
A: As we know, prices of chemicals are not fixed, they fluctuate with the markets.
Q: Is the quality of your products guaranteed?
A: We have a professional R&D team, so every batch of our products is up to standard.




1. With a seasoned R&D team, we are experienced in producing multiple chemicals over the past ten years.
2. Tailor-made packing can also be available according to your specific requirment.
3. Fast response. Every inquiry will be answered within 24 hours
4. Prompt delivery. We have worked with many forwarding companies for years.
5. Good quality, we have a strict quality control system.


Похожие товары

Новые поступления

Новинки товаров от производителей по оптовым ценам