(2R,5S)-2-benzyloxymethyl-8-(4-methoxybenzyl)-6-benzyloxycarbonyl-1-oxa-6,8-diazaspiro<4,4>nonane-3-ene-7,9-dione

Base Information

Chemical Name:(2R,5S)-2-benzyloxymethyl-8-(4-methoxybenzyl)-6-benzyloxycarbonyl-1-oxa-6,8-diazaspiro<4,4>nonane-3-ene-7,9-dione
CAS No.:133909-07-6
Molecular Formula:C₃₀H₂₈N₂O₇
Molecular Weight:528.562
Hs Code.:

Synonyms:(2R,5S)-2-benzyloxymethyl-8-(4-methoxybenzyl)-6-benzyloxycarbonyl-1-oxa-6,8-diazaspiro<4,4>nonane-3-ene-7,9-dione

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Chemical Property of (2R,5S)-2-benzyloxymethyl-8-(4-methoxybenzyl)-6-benzyloxycarbonyl-1-oxa-6,8-diazaspiro<4,4>nonane-3-ene-7,9-dione

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Technology Process of (2R,5S)-2-benzyloxymethyl-8-(4-methoxybenzyl)-6-benzyloxycarbonyl-1-oxa-6,8-diazaspiro<4,4>nonane-3-ene-7,9-dione

There total 8 articles about (2R,5S)-2-benzyloxymethyl-8-(4-methoxybenzyl)-6-benzyloxycarbonyl-1-oxa-6,8-diazaspiro<4,4>nonane-3-ene-7,9-dione 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:

: 133886-13-2
3-(4-methoxybenzyl)imidazolidine-2,4-dione

: 133909-07-6
(2R,5S)-2-benzyloxymethyl-8-(4-methoxybenzyl)-6-benzyloxycarbonyl-1-oxa-6,8-diazaspiro<4,4>nonane-3-ene-7,9-dione

Guidance literature:: Multi-step reaction with 4 steps

1: 91 percent / 15 h / Heating

2: 14 percent / t-BuOK / dioxane / 1.) 0 deg C, 30 min, 2.) 5 h, r. t.

3: 38 percent / p-TsOH*H₂O, molecular sieves 4 Angstroem / 1,2-dichloro-ethane / 20 h / Ambient temperature

4: 1.) t-BuOK / 1.) THF, 0 degC 20 min., 2.) 40 min, r.t.

With 4 A molecular sieve; potassium tert-butylate; toluene-4-sulfonic acid; In 1,4-dioxane; 1,2-dichloro-ethane;
DOI:10.1016/S0040-4020(01)96122-8

Reference yield:

: 824-94-2
p-methoxybenzyl chloride

: 133909-07-6
(2R,5S)-2-benzyloxymethyl-8-(4-methoxybenzyl)-6-benzyloxycarbonyl-1-oxa-6,8-diazaspiro<4,4>nonane-3-ene-7,9-dione

Guidance literature:: Multi-step reaction with 5 steps

1: 92 percent / t-BuOK / dimethylsulfoxide / 4 h / Ambient temperature

2: 91 percent / 15 h / Heating

3: 14 percent / t-BuOK / dioxane / 1.) 0 deg C, 30 min, 2.) 5 h, r. t.

4: 38 percent / p-TsOH*H₂O, molecular sieves 4 Angstroem / 1,2-dichloro-ethane / 20 h / Ambient temperature

5: 1.) t-BuOK / 1.) THF, 0 degC 20 min., 2.) 40 min, r.t.

With 4 A molecular sieve; potassium tert-butylate; toluene-4-sulfonic acid; In 1,4-dioxane; dimethyl sulfoxide; 1,2-dichloro-ethane;
DOI:10.1016/S0040-4020(01)96122-8

Reference yield:

: 129744-26-9
N-acetyl N-methoxybenzylhydantoin

: 133909-07-6
(2R,5S)-2-benzyloxymethyl-8-(4-methoxybenzyl)-6-benzyloxycarbonyl-1-oxa-6,8-diazaspiro<4,4>nonane-3-ene-7,9-dione

Guidance literature:: Multi-step reaction with 3 steps

1: 14 percent / t-BuOK / dioxane / 1.) 0 deg C, 30 min, 2.) 5 h, r. t.

2: 38 percent / p-TsOH*H₂O, molecular sieves 4 Angstroem / 1,2-dichloro-ethane / 20 h / Ambient temperature

3: 1.) t-BuOK / 1.) THF, 0 degC 20 min., 2.) 40 min, r.t.

With 4 A molecular sieve; potassium tert-butylate; toluene-4-sulfonic acid; In 1,4-dioxane; 1,2-dichloro-ethane;
DOI:10.1016/S0040-4020(01)96122-8