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wittig reaction by t-BuOK/THF, 5-hydroxytrphenylphosphonium bromide and 2-cis-hexenal
I made the wittig salt as "Studies on the Biomimetic Synthesis of the Manzamine Alkaloids" of Jack E ... |
26-9-2011 at 16:10
by: napoleon9 |
wittig reaction by t-BuOK/THF, 5-hydroxytrphenylphosphonium bromide and 2-cis-hexenal
sorry I write wrong.
wittig : 5-hydroxypentyltriphenylphosphonium bromide with 2-cis-hexenal in t ... |
26-9-2011 at 06:58
by: napoleon9 |
wittig reaction by t-BuOK/THF, 5-hydroxytrphenylphosphonium bromide and 2-cis-hexenal
I made wittig reaction of 5-hydroxytrphenylphosphonium bromide and 2-cis-hexenal by t-BuOK catalyst ... |
21-9-2011 at 09:14
by: napoleon9 |
Microwave assisted organic synthesis
[rquote=152302&tid=12195&author=feynmann]Well I know well commercial reactors (CEM,biotage , ... |
10-6-2011 at 08:45
by: napoleon9 |
TLC of (E)-hept-2-enal
I want to know cọnjugate aldehyde stain on TLC. When you run the TLC what is resolution s ... |
27-5-2011 at 20:49
by: napoleon9 |
it differences between diglyme and THF in LAH reaction
I will remove the protecting group in the next step. If you are me, how do you do ?
"I usually wo ... |
19-5-2011 at 03:59
by: napoleon9 |
it differences between diglyme and THF in LAH reaction
I were looking for a procedure :"The reaction was quenched by
addition of aqueous sodium hydroxide ... |
15-5-2011 at 17:07
by: napoleon9 |
it differences between diglyme and THF in LAH reaction
I were reduction of 2-(hex-1-yn-1-yl)-1,3-dioxolane by LiAlH4 in diglyme solution. After the reactio ... |
12-5-2011 at 03:18
by: napoleon9 |
it differences between diglyme and THF in LAH reaction
ok thanks
some magazine give me some advice was it washed by NaOH 0,1M with n mol NaOH = n LAH used ... |
30-4-2011 at 16:54
by: napoleon9 |
it differences between diglyme and THF in LAH reaction
If product had OTHP group, I washed it by NaOH. But it will give Al(OH)3. So, product will be lost. ... |
29-4-2011 at 06:48
by: napoleon9 |
it differences between diglyme and THF in LAH reaction
when we made a reductive reaction by LiAlH4. We usually used THF solvent, but sometimes we used digl ... |
25-4-2011 at 08:25
by: napoleon9 |
wash 5-hydroxypentyltriphenylphosphonium bromide
[rquote=206015&tid=15965&author=smuv]There would be some irony to picking a thp protecting g ... |
6-4-2011 at 06:08
by: napoleon9 |
wash 5-hydroxypentyltriphenylphosphonium bromide
after the reaction ends if based on the above process can not be separated from the phosphonium salt ... |
6-4-2011 at 06:01
by: napoleon9 |
wash 5-hydroxypentyltriphenylphosphonium bromide
some people show me that I need use to acid scavenger (K2CO3) . A solution containing 2.84 g 5-b ... |
6-4-2011 at 05:53
by: napoleon9 |
5-bromopenta-1-ol to 5-hydroxypentyltriphenylphosphonium bromide is not easy
when 5-bromo-1-pentanol was treated with triphenylphosphine in dry benzene and heated to reflux only ... |
5-4-2011 at 17:16
by: napoleon9 |
reduction alkyne to alkene by LiAlH4, diglyme
I want E-alkene product. I use LAH in diglyme solution. If you use Pd/C then it has Z-alkene product ... |
1-4-2011 at 20:17
by: napoleon9 |
reduction alkyne to alkene by LiAlH4, diglyme
i want redection 9-chloro-1,1-diethoxynon-2-yne to 9-chloro-1,1-diethoxynon-2-ene by LAH in diglyme. ... |
31-3-2011 at 22:50
by: napoleon9 |
reduction alkyne to alkene by LiAlH4, diglyme
i want reduction alkyne to alkene by LiAlH4 in diglyme solution catalyst. If you are this experience ... |
31-3-2011 at 15:18
by: napoleon9 |
wash 5-hydroxypentyltriphenylphosphonium bromide
5-hydroxypentyltriphenylphosphonium bromide was synthesis from 5-bromopentan-1-ol and triphenylphosp ... |
23-3-2011 at 05:28
by: napoleon9 |
hepta-1-yne ----> (2E)-2-octen-1-al
if you have hepta-1-yne, you can show some way synthesis (2E)-2-octen-1-al.
note:
you can use t ... |
7-3-2011 at 05:53
by: napoleon9 |
make dry hex-1-yne
i read book purification of lab
"1-Hexyne [693-02-7] M 82.2, b 12.5o/75mm, 7 1o/760mm
Distil i ... |
3-3-2011 at 20:33
by: napoleon9 |
make dry hex-1-yne
hex-1-yne is Merck product, 98%. I don't find MS 4A in HO CHI MINH city, VIET NAM. how do you make d ... |
22-2-2011 at 21:52
by: napoleon9 |
make dry hex-1-yne
some my friend advice me that hexyne are dry by CaO or MgSO4 ????
If my Lab haven't MS 4A. How d ... |
12-2-2011 at 09:03
by: napoleon9 |
make dry hex-1-yne
I'm sorry. I remember incorrect. Dry hex-1-yne by MS 4A. Please give me some advice.
thanks |
10-2-2011 at 14:31
by: napoleon9 |
make dry hex-1-yne
My teacher advice me that i make dry hex-1-yne by CaH2, but My Lab haven't it now. Please give me so ... |
10-2-2011 at 14:03
by: napoleon9 |
