Lithium Diisopropylamide CAS 4111-54-0

Lithium diisopropylamide (LDA) is a white pyrophoric powder. Freshly prepared, it is soluble in hydrocarbons (in hexane about 10 %), but it tends to precipitate irreversibly from solution as a polymer on heating or prolonged storage. In ethers the solubility is much higher, but with the exception of tetrahydropyran, LDA is decomposed at a rate depending on the ether, concentration, and temperature.

Lithium diisopropylamide is a sterically hindered nonnucleophilic strong base used for selective deprotonations, especially for the production of kinetic enolates (i.e., the thermodynamically less favored isomer) and (hetero-)aromatic carbanions. In the production of the serum lipid regulating agent Gemfibrozil one key intermediate is formed by quenching an ester enolate with 1-bromo-3-chloropropane.

Lithium diisopropylamide solution (LDA) can be used:

• As an initiator in the anionic polymerization of D,L-lactide and methyl methacrylate.
• To facilitate ester enolization.
• To convert carboxylic acids to enediolate intermediates for preparing trifluoromethyl ketones.
• In ortho-lithiation of arylsulfonyloxazolidinones to prepare N-substituted saccharin analogs.
• To catalyze ortholithiation and Fries rearrangement of aryl carbamates.
• As a promoter in the isomerization of allylic ethers to (Z)-propenyl ethers.

Tuna viwanda vingi vya ubora wa juu na ushirikiano wa kina, ambavyo vinaweza kukupa bidhaa za ubora wa juu na bei za ushindani. Na tunaweza pia kutoa punguzo kwa ununuzi wa wingi.Na tunashirikiana na makampuni mengi ya kitaalamu ya usambazaji wa mizigo, yanaweza kuwasilisha bidhaa kwa usalama na kwa urahisi mikononi mwako. Wakati wa uwasilishaji ni takriban siku 3-20 baada ya uthibitisho wa malipo.

Product Name:	Lithium diisopropylamide
Synonyms:	ithium diisopropyL;LITHIUM DIISOPROPYLAMIDE THF COMPLEX;LITHIUM DIISOPROPYLAMINE;LITHIUM DIISOPROPYLAMIDE;LDA THF COMPLEX;LDA;DIISOPROPYLAMINOLITHIUM;Lithium diisopropylamide solution
CAS:	4111-54-0
MF:	C6H16LiN
MW:	109.14
EINECS:	223-893-0
Product Categories:	Classes of Metal Compounds;
Mol File:	4111-54-0.mol

1. Je, wewe ni kiwanda au kampuni ya biashara?
Sisi ni compnay kuunganisha sekta na biashara, kutoa one-stop service.OEM inaweza kukubalika.

2. Je, unatoa sampuli? Je, ni bure au ya ziada?
Sampuli zisizolipishwa. Ada ya mizigo ya sampuli inahitaji kulipwa na wewe.

3. Je, una vyeti vyovyote vinavyohusiana na udhibiti wa ubora?
Cheti cha ISO 9001:2008 ili kuhakikisha ubora.

4. Nitoe nini ili kupata nukuu?
Pls tufahamishe aina ya bidhaa unayohitaji, kiasi cha agizo, anwani na mahitaji maalum. Nukuu itafanywa kwa kumbukumbu yako kwa wakati.

5. Je, unapendelea njia gani ya malipo? Ni masharti ya aina gani yanakubaliwa?
Sheria na Masharti Yanayokubaliwa: FOB,CFR,CIF,EXW;
Accepted Payment Currency:USD;EUR
Aina ya Malipo Yanayokubaliwa: T/T,Western Union; Paypal, Uhakikisho wa Biashara.
Lugha Inasemwa:Kiingereza.