methyl (E)-(4S,5R,6S,7S,8S)-5-acetoxy-7-(benzyloxy)-8,9-dihydroxy-2,4,6-trimethylnon-2-enoate

Base Information

Chemical Name:methyl (E)-(4S,5R,6S,7S,8S)-5-acetoxy-7-(benzyloxy)-8,9-dihydroxy-2,4,6-trimethylnon-2-enoate
CAS No.:146517-98-8
Molecular Formula:C₂₂H₃₂O₇
Molecular Weight:408.492
Hs Code.:

Synonyms:methyl (E)-(4S,5R,6S,7S,8S)-5-acetoxy-7-(benzyloxy)-8,9-dihydroxy-2,4,6-trimethylnon-2-enoate

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Chemical Property of methyl (E)-(4S,5R,6S,7S,8S)-5-acetoxy-7-(benzyloxy)-8,9-dihydroxy-2,4,6-trimethylnon-2-enoate

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Technology Process of methyl (E)-(4S,5R,6S,7S,8S)-5-acetoxy-7-(benzyloxy)-8,9-dihydroxy-2,4,6-trimethylnon-2-enoate

There total 10 articles about methyl (E)-(4S,5R,6S,7S,8S)-5-acetoxy-7-(benzyloxy)-8,9-dihydroxy-2,4,6-trimethylnon-2-enoate 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: 98.0%

: 120040-80-4
methyl (E)-(4S,5R,6S,7S,8S)-5-acetoxy-7-(benzyloxy)-8,9-(isopropylidenedioxy)-2,4,6-trimethylnon-2-enoate

: 146517-98-8
methyl (E)-(4S,5R,6S,7S,8S)-5-acetoxy-7-(benzyloxy)-8,9-dihydroxy-2,4,6-trimethylnon-2-enoate

Guidance literature:: With acetic acid; In methanol; at 95 ℃; for 25h;
DOI:10.1021/ja00059a024

Reference yield:

: 120143-05-7
(3S,4S,5S)-4-(benzyloxy)-5,6-(isopropylidenedioxy)-3-methylhex-1-ene

: 146517-98-8
methyl (E)-(4S,5R,6S,7S,8S)-5-acetoxy-7-(benzyloxy)-8,9-dihydroxy-2,4,6-trimethylnon-2-enoate

Guidance literature:: Multi-step reaction with 6 steps

1: 1.) O₃, 2.) Me₂S / 1.) MeOH, -78 deg C, 30 min, 2.) MeOH, RT

2: 1.) 4 Angstroem molecular sieves, 3.) NaBH₄

3: 1.) O₃, 2.) Ph₃P / 1.) MeOH, -78 deg C, 2.) MeOH, RT, 2 h

4: 88 percent / toluene; CH₂Cl₂ / 12 h / 45 °C

5: 95 percent / DMAP, Et₃N / CH₂Cl₂ / 16 h

6: 98 percent / aq. AcOH / methanol / 25 h / 95 °C

With dmap; sodium tetrahydroborate; dimethylsulfide; 4 A molecular sieve; ozone; acetic acid; triethylamine; triphenylphosphine; In methanol; dichloromethane; toluene;
DOI:10.1021/ja00059a024

Reference yield:

: 120040-77-9
(2R,3S)-3-Benzyloxy-3-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-2-methyl-propionaldehyde

: 146517-98-8
methyl (E)-(4S,5R,6S,7S,8S)-5-acetoxy-7-(benzyloxy)-8,9-dihydroxy-2,4,6-trimethylnon-2-enoate

Guidance literature:: Multi-step reaction with 5 steps

1: 1.) 4 Angstroem molecular sieves, 3.) NaBH₄

2: 1.) O₃, 2.) Ph₃P / 1.) MeOH, -78 deg C, 2.) MeOH, RT, 2 h

3: 88 percent / toluene; CH₂Cl₂ / 12 h / 45 °C

4: 95 percent / DMAP, Et₃N / CH₂Cl₂ / 16 h

5: 98 percent / aq. AcOH / methanol / 25 h / 95 °C

With dmap; sodium tetrahydroborate; 4 A molecular sieve; ozone; acetic acid; triethylamine; triphenylphosphine; In methanol; dichloromethane; toluene;
DOI:10.1021/ja00059a024