ethyl (2E,4S,5R)-2,4-dimethyl-5-(4-methoxybenzyloxy)-4-methoxymethoxyhept-2-enoate

Base Information

Chemical Name:ethyl (2E,4S,5R)-2,4-dimethyl-5-(4-methoxybenzyloxy)-4-methoxymethoxyhept-2-enoate
CAS No.:124871-92-7
Molecular Formula:C₂₁H₃₂O₆
Molecular Weight:380.481
Hs Code.:

Synonyms:ethyl (2E,4S,5R)-2,4-dimethyl-5-(4-methoxybenzyloxy)-4-methoxymethoxyhept-2-enoate

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Chemical Property of ethyl (2E,4S,5R)-2,4-dimethyl-5-(4-methoxybenzyloxy)-4-methoxymethoxyhept-2-enoate

Chemical Property:

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Technology Process of ethyl (2E,4S,5R)-2,4-dimethyl-5-(4-methoxybenzyloxy)-4-methoxymethoxyhept-2-enoate

There total 5 articles about ethyl (2E,4S,5R)-2,4-dimethyl-5-(4-methoxybenzyloxy)-4-methoxymethoxyhept-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:

: 76639-80-0
((2S,3S)-3-ethyl-2-methyloxiran-2-yl)methanol

: 124871-92-7
ethyl (2E,4S,5R)-2,4-dimethyl-5-(4-methoxybenzyloxy)-4-methoxymethoxyhept-2-enoate

Guidance literature:: Multi-step reaction with 4 steps

1: 42 percent / Ti(iso-PrO)4 / benzene / 45 h / Ambient temperature

2: 1.) Ac₂O, DMAP, Et₃N, 2.) diisopropyl ethylamine, 3.) 1N NaOH / 1.) CH₂Cl₂, RT, 1 h, 2.) CH₂Cl₂, 45 deg C, 8 h, 3.) MeOH, RT, 75 min

3: 97 percent / PCC, molecular sieves 3A / CH₂Cl₂ / 2 h / Ambient temperature

4: various solvent(s) / 96 h / Heating

With titanium(IV) isopropylate; dmap; sodium hydroxide; 3 A molecular sieve; acetic anhydride; triethylamine; N-ethyl-N,N-diisopropylamine; pyridinium chlorochromate; In dichloromethane; benzene;
DOI:10.1248/cpb.37.1155

Reference yield:

: 124871-88-1
(2S,3R)-3-(4-methoxybenzyloxy)-2-methylpentane-1,2-diol

: 124871-92-7
ethyl (2E,4S,5R)-2,4-dimethyl-5-(4-methoxybenzyloxy)-4-methoxymethoxyhept-2-enoate

Guidance literature:: Multi-step reaction with 3 steps

1: 1.) Ac₂O, DMAP, Et₃N, 2.) diisopropyl ethylamine, 3.) 1N NaOH / 1.) CH₂Cl₂, RT, 1 h, 2.) CH₂Cl₂, 45 deg C, 8 h, 3.) MeOH, RT, 75 min

2: 97 percent / PCC, molecular sieves 3A / CH₂Cl₂ / 2 h / Ambient temperature

3: various solvent(s) / 96 h / Heating

With dmap; sodium hydroxide; 3 A molecular sieve; acetic anhydride; triethylamine; N-ethyl-N,N-diisopropylamine; pyridinium chlorochromate; In dichloromethane;
DOI:10.1248/cpb.37.1155

Reference yield:

: 124871-91-6
(2S,3R)-3-(4-methoxybenzyloxy)-2-methoxymethoxy-2-methylpentan-1-ol

: 124871-92-7
ethyl (2E,4S,5R)-2,4-dimethyl-5-(4-methoxybenzyloxy)-4-methoxymethoxyhept-2-enoate

Guidance literature:: Multi-step reaction with 2 steps

1: 97 percent / PCC, molecular sieves 3A / CH₂Cl₂ / 2 h / Ambient temperature

2: various solvent(s) / 96 h / Heating

With 3 A molecular sieve; pyridinium chlorochromate; In dichloromethane;
DOI:10.1248/cpb.37.1155