6-O-tert-butyldiphenylsilyl-β-D-galactopyranosyl 1-carba-2,3,4,6-tetra-O-benzyl-α-D-mannopyranoside

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Chemical Name:6-O-tert-butyldiphenylsilyl-β-D-galactopyranosyl 1-carba-2,3,4,6-tetra-O-benzyl-α-D-mannopyranoside
CAS No.:270922-33-3
Molecular Formula:C₅₇H₆₆O₁₀Si
Molecular Weight:939.231
Hs Code.:

Synonyms:6-O-tert-butyldiphenylsilyl-β-D-galactopyranosyl 1-carba-2,3,4,6-tetra-O-benzyl-α-D-mannopyranoside

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Chemical Property of 6-O-tert-butyldiphenylsilyl-β-D-galactopyranosyl 1-carba-2,3,4,6-tetra-O-benzyl-α-D-mannopyranoside

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Technology Process of 6-O-tert-butyldiphenylsilyl-β-D-galactopyranosyl 1-carba-2,3,4,6-tetra-O-benzyl-α-D-mannopyranoside

There total 8 articles about 6-O-tert-butyldiphenylsilyl-β-D-galactopyranosyl 1-carba-2,3,4,6-tetra-O-benzyl-α-D-mannopyranoside 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: 63.0%

: 224325-01-3
3,4-O-isopropylidene-6-O-tert-butyldiphenylsilyl-β-D-galactopyranosyl 1-carba-2,3,4,6-tetra-O-benzyl-α-D-mannopyranoside

: 270922-33-3
6-O-tert-butyldiphenylsilyl-β-D-galactopyranosyl 1-carba-2,3,4,6-tetra-O-benzyl-α-D-mannopyranoside

Guidance literature:: With hydrogenchloride; In methanol; diethyl ether; at 20 ℃; for 0.333333h;
DOI:10.1021/jo991898h

Reference yield:

: 58479-61-1
tert-butylchlorodiphenylsilane

: 270922-33-3
6-O-tert-butyldiphenylsilyl-β-D-galactopyranosyl 1-carba-2,3,4,6-tetra-O-benzyl-α-D-mannopyranoside

Guidance literature:: Multi-step reaction with 8 steps

1.1: 95 percent / imidazole / dimethylformamide / 1.5 h / 50 °C

2.1: 95 percent / I₂ / cyclohexane / 3 h / 20 °C

3.1: BF₃*Et₂O / CH₂Cl₂ / 1 h / -40 °C

3.2: 90 percent / NH₃ / methanol / 0.5 h / 20 °C

4.1: 97.2 percent / DCC; DMAP / benzene / 1.5 h / 0 - 20 °C

5.1: 88 percent / pyridine / toluene; tetrahydrofuran / 1 h / -78 °C

6.1: 88 percent / methyl triflate; 2,6-di-tert-butyl-4-methylpyridine; 4 Angstroem molecular sieves / CH₂Cl₂ / 18 h / 20 °C

7.1: 83 percent / BH₃*Me₂S / CH₂Cl₂; tetrahydrofuran / 0 - 20 °C

8.1: 63 percent / aq. HCl / diethyl ether; methanol / 0.33 h / 20 °C

With pyridine; 1H-imidazole; hydrogenchloride; dmap; 2,6-di-tert-butyl-4-methylpyridine; dimethylsulfide borane complex; 4 A molecular sieve; boron trifluoride diethyl etherate; iodine; dicyclohexyl-carbodiimide; methyl trifluoromethanesulfonate; In tetrahydrofuran; methanol; diethyl ether; dichloromethane; cyclohexane; N,N-dimethyl-formamide; toluene; benzene; 1.1: silylation / 2.1: Ring cleavage / 3.1: Substitution / 3.2: deesterification / 4.1: Esterification / 5.1: methylenation / 6.1: Cyclization / 7.1: Reduction / 8.1: Hydrolysis;
DOI:10.1021/jo991898h

Reference yield:

: ((2R,3R,4R,5R,6R)-3,4,5-Tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-acetic acid (R)-2-(tert-butyl-diphenyl-silanyloxy)-1-((4S,5R)-2,2-dimethyl-5-phenylsulfanyl-[1,3]dioxolan-4-yl)-ethyl ester

: 270922-33-3
6-O-tert-butyldiphenylsilyl-β-D-galactopyranosyl 1-carba-2,3,4,6-tetra-O-benzyl-α-D-mannopyranoside

Guidance literature:: Multi-step reaction with 4 steps

1: 88 percent / pyridine / toluene; tetrahydrofuran / 1 h / -78 °C

2: 88 percent / methyl triflate; 2,6-di-tert-butyl-4-methylpyridine; 4 Angstroem molecular sieves / CH₂Cl₂ / 18 h / 20 °C

3: 83 percent / BH₃*Me₂S / CH₂Cl₂; tetrahydrofuran / 0 - 20 °C

4: 63 percent / aq. HCl / diethyl ether; methanol / 0.33 h / 20 °C

With pyridine; hydrogenchloride; 2,6-di-tert-butyl-4-methylpyridine; dimethylsulfide borane complex; 4 A molecular sieve; methyl trifluoromethanesulfonate; In tetrahydrofuran; methanol; diethyl ether; dichloromethane; toluene; 1: methylenation / 2: Cyclization / 3: Reduction / 4: Hydrolysis;
DOI:10.1021/jo991898h