ethyl (2E,4R)-4-<(2R,4S,5S,6R)-6-<(2R,3S)-2-ethyl-3-methyl-1,4-dioxaspiro<4.4>nonan-3-yl>-4-<2-(4-methoxyphenyl)-5-methyl-1,3-dioxan-4-yl>>-2-methyl-2-pentenoate

Base Information

Chemical Name:ethyl (2E,4R)-4-<(2R,4S,5S,6R)-6-<(2R,3S)-2-ethyl-3-methyl-1,4-dioxaspiro<4.4>nonan-3-yl>-4-<2-(4-methoxyphenyl)-5-methyl-1,3-dioxan-4-yl>>-2-methyl-2-pentenoate
CAS No.:160429-72-1
Molecular Formula:C₃₀H₄₄O₇
Molecular Weight:516.675
Hs Code.:

Synonyms:ethyl (2E,4R)-4-<(2R,4S,5S,6R)-6-<(2R,3S)-2-ethyl-3-methyl-1,4-dioxaspiro<4.4>nonan-3-yl>-4-<2-(4-methoxyphenyl)-5-methyl-1,3-dioxan-4-yl>>-2-methyl-2-pentenoate

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Chemical Property of ethyl (2E,4R)-4-<(2R,4S,5S,6R)-6-<(2R,3S)-2-ethyl-3-methyl-1,4-dioxaspiro<4.4>nonan-3-yl>-4-<2-(4-methoxyphenyl)-5-methyl-1,3-dioxan-4-yl>>-2-methyl-2-pentenoate

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Technology Process of ethyl (2E,4R)-4-<(2R,4S,5S,6R)-6-<(2R,3S)-2-ethyl-3-methyl-1,4-dioxaspiro<4.4>nonan-3-yl>-4-<2-(4-methoxyphenyl)-5-methyl-1,3-dioxan-4-yl>>-2-methyl-2-pentenoate

There total 7 articles about ethyl (2E,4R)-4-<(2R,4S,5S,6R)-6-<(2R,3S)-2-ethyl-3-methyl-1,4-dioxaspiro<4.4>nonan-3-yl>-4-<2-(4-methoxyphenyl)-5-methyl-1,3-dioxan-4-yl>>-2-methyl-2-pentenoate 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: 91.0%

: 160625-13-8
(2S)-2-<(2R,4R,5S,6R)-6-<(2R,3S)-2-ethyl-3-methyl-1,4-dioxaspiro<4.4>nonan-3-yl>-2-<2-(4-methoxyphenyl)-5-methyl-1,3-dioxan-4-yl>>propanal

: 21382-82-1
(carbethoxyethylidene)triphenylphosphorane

: 160429-72-1
ethyl (2E,4R)-4-<(2R,4S,5S,6R)-6-<(2R,3S)-2-ethyl-3-methyl-1,4-dioxaspiro<4.4>nonan-3-yl>-4-<2-(4-methoxyphenyl)-5-methyl-1,3-dioxan-4-yl>>-2-methyl-2-pentenoate

Guidance literature:: In dichloromethane; for 24h; Ambient temperature;

Reference yield:

: 147033-10-1
(2R,3S)-2-ethyl-3-<<(2R,4S,3S,5S,6R)-2-(4-methoxyphenyl)-5-methyl-4-<(1R,2E)-1-methyl-2-butenyl>>-1,3-dioxan-6-yl>-3-methyl-1,4-dioxaspiro<4.4>nonane

: 160429-72-1
ethyl (2E,4R)-4-<(2R,4S,5S,6R)-6-<(2R,3S)-2-ethyl-3-methyl-1,4-dioxaspiro<4.4>nonan-3-yl>-4-<2-(4-methoxyphenyl)-5-methyl-1,3-dioxan-4-yl>>-2-methyl-2-pentenoate

Guidance literature:: Multi-step reaction with 2 steps

1: 1.) O₃/O₂; 2.) Ph₃P / 1.) CH₂Cl₂, -78 deg C; 2.) CH₂Cl₂, -78 deg C to 0 deg C

2: 91 percent / CH₂Cl₂ / 24 h / Ambient temperature

With oxygen; ozone; triphenylphosphine; In dichloromethane;

Reference yield:

: 120788-81-0
(2R,3R)-3-ethyl-2-methyl-1,4-dioxaspiro<4.4>nonane-2-carbaldehyde

: 160429-72-1
ethyl (2E,4R)-4-<(2R,4S,5S,6R)-6-<(2R,3S)-2-ethyl-3-methyl-1,4-dioxaspiro<4.4>nonan-3-yl>-4-<2-(4-methoxyphenyl)-5-methyl-1,3-dioxan-4-yl>>-2-methyl-2-pentenoate

Guidance literature:: Multi-step reaction with 7 steps

1: 81 percent / benzene / 72 h / 80 °C

2: 97 percent / NaH / dimethylformamide

3: 1.) O₃, 2.) Ph₃P / 1.) -78 deg C, 2.) CH₂Cl₂

4: 79 percent / petroleum ether / 48 h / 25 °C

5: 91 percent / DDQ, molecular sieves / 0 °C

6: 1.) O₃, 2.) Ph₃P / 1.) -78 deg C, 2.) CH₂Cl₂

7: CH₂Cl₂ / 24 h

With molecular sieve; sodium hydride; ozone; triphenylphosphine; 2,3-dicyano-5,6-dichloro-p-benzoquinone; In dichloromethane; N,N-dimethyl-formamide; Petroleum ether; benzene;