Methyl 2,3-di-O-methyl-4-O-<4-O-benzyl-3-O-methyl-2-O-(4-O-benzyl-2,3-di-O-methyl-α-L-rhamnopyranosyl)-α-L-rhamnopyranosyl>-α-L-rhamnopyranoside

Base Information

Chemical Name:Methyl 2,3-di-O-methyl-4-O-<4-O-benzyl-3-O-methyl-2-O-(4-O-benzyl-2,3-di-O-methyl-α-L-rhamnopyranosyl)-α-L-rhamnopyranosyl>-α-L-rhamnopyranoside
CAS No.:150966-55-5
Molecular Formula:C₃₈H₅₆O₁₃
Molecular Weight:720.855
Hs Code.:

Synonyms:Methyl 2,3-di-O-methyl-4-O-<4-O-benzyl-3-O-methyl-2-O-(4-O-benzyl-2,3-di-O-methyl-α-L-rhamnopyranosyl)-α-L-rhamnopyranosyl>-α-L-rhamnopyranoside

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Chemical Property of Methyl 2,3-di-O-methyl-4-O-<4-O-benzyl-3-O-methyl-2-O-(4-O-benzyl-2,3-di-O-methyl-α-L-rhamnopyranosyl)-α-L-rhamnopyranosyl>-α-L-rhamnopyranoside

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Technology Process of Methyl 2,3-di-O-methyl-4-O-<4-O-benzyl-3-O-methyl-2-O-(4-O-benzyl-2,3-di-O-methyl-α-L-rhamnopyranosyl)-α-L-rhamnopyranosyl>-α-L-rhamnopyranoside

There total 10 articles about Methyl 2,3-di-O-methyl-4-O-<4-O-benzyl-3-O-methyl-2-O-(4-O-benzyl-2,3-di-O-methyl-α-L-rhamnopyranosyl)-α-L-rhamnopyranosyl>-α-L-rhamnopyranoside which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 93.0%

: 150966-54-4
Methyl 2,3-di-O-methyl-4-O-<4-O-benzyl-3-O-methyl-2-O-(4-O-benzyl-3-O-methyl-α-L-rhamnopyranosyl)-α-L-rhamnopyranosyl>-α-L-rhamnopyranoside

: 74-88-4
methyl iodide

: 150966-55-5
Methyl 2,3-di-O-methyl-4-O-<4-O-benzyl-3-O-methyl-2-O-(4-O-benzyl-2,3-di-O-methyl-α-L-rhamnopyranosyl)-α-L-rhamnopyranosyl>-α-L-rhamnopyranoside

Guidance literature:: With sodium hydride; In tetrahydrofuran; for 3h; Ambient temperature;

Reference yield:

: 69558-13-0
methyl 4-O-benzyl-3-O-methyl-α-L-rhamnopyranoside

: 150966-55-5
Methyl 2,3-di-O-methyl-4-O-<4-O-benzyl-3-O-methyl-2-O-(4-O-benzyl-2,3-di-O-methyl-α-L-rhamnopyranosyl)-α-L-rhamnopyranosyl>-α-L-rhamnopyranoside

Guidance literature:: Multi-step reaction with 7 steps

1: 1.5M H₂SO₄ / dioxane / 3 h / 100 °C

2: pyridine, 4-dimethylaminopyridine / 24 h

3: 1.95 g / tributyltin ethoxide / 1,2-dichloro-ethane / 3 h / Heating

4: 93 percent / 1,8-diazabicyclo<5.4.0>undec-7-ene / CH₂Cl₂ / 0.5 h / Ambient temperature

5: 70 percent / BF₃*Et₂O, 4A molecular sieves / CH₂Cl₂ / 0.5 h / 0 °C

6: 94 percent / NaOMe / methanol / 2 h / Ambient temperature

7: 93 percent / NaH / tetrahydrofuran / 3 h / Ambient temperature

With pyridine; dmap; 4 A molecular sieve; sulfuric acid; boron trifluoride diethyl etherate; sodium methylate; sodium hydride; tributyltin ethoxide; 1,8-diazabicyclo[5.4.0]undec-7-ene; In tetrahydrofuran; 1,4-dioxane; methanol; dichloromethane; 1,2-dichloro-ethane;

Reference yield:

: 25019-69-6
methyl 4-O-benzyl-α-L-rhamnopyranoside

: 150966-55-5
Methyl 2,3-di-O-methyl-4-O-<4-O-benzyl-3-O-methyl-2-O-(4-O-benzyl-2,3-di-O-methyl-α-L-rhamnopyranosyl)-α-L-rhamnopyranosyl>-α-L-rhamnopyranoside

Guidance literature:: Multi-step reaction with 8 steps

1: 1) dibutyltin oxide, 2) Bu₄NI / 1) benzene, 5 h, reflux, 2) 5 h, reflux

2: 1.5M H₂SO₄ / dioxane / 3 h / 100 °C

3: pyridine, 4-dimethylaminopyridine / 24 h

4: 1.95 g / tributyltin ethoxide / 1,2-dichloro-ethane / 3 h / Heating

5: 93 percent / 1,8-diazabicyclo<5.4.0>undec-7-ene / CH₂Cl₂ / 0.5 h / Ambient temperature

6: 70 percent / BF₃*Et₂O, 4A molecular sieves / CH₂Cl₂ / 0.5 h / 0 °C

7: 94 percent / NaOMe / methanol / 2 h / Ambient temperature

8: 93 percent / NaH / tetrahydrofuran / 3 h / Ambient temperature

With pyridine; dmap; 4 A molecular sieve; sulfuric acid; boron trifluoride diethyl etherate; sodium methylate; tetra-(n-butyl)ammonium iodide; sodium hydride; di(n-butyl)tin oxide; tributyltin ethoxide; 1,8-diazabicyclo[5.4.0]undec-7-ene; In tetrahydrofuran; 1,4-dioxane; methanol; dichloromethane; 1,2-dichloro-ethane;