(2R,4S,6R,8S,10S)-8-(2-Benzyloxy-ethyl)-4-methyl-2-vinyl-1,7-dioxa-spiro[5.5]undecane-4,10-diol

Base Information

• Chemical Name: (2R,4S,6R,8S,10S)-8-(2-Benzyloxy-ethyl)-4-methyl-2-vinyl-1,7-dioxa-spiro[5.5]undecane-4,10-diol
• CAS No.: 215160-87-5
• Molecular Formula: C₂₁H₃₀O₅
• Molecular Weight: 362.466
• Mol file: 215160-87-5.mol

Synonyms:(2R,4S,6R,8S,10S)-8-(2-Benzyloxy-ethyl)-4-methyl-2-vinyl-1,7-dioxa-spiro[5.5]undecane-4,10-diol

Chemical Property of (2R,4S,6R,8S,10S)-8-(2-Benzyloxy-ethyl)-4-methyl-2-vinyl-1,7-dioxa-spiro[5.5]undecane-4,10-diol

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (2R,4S,6R,8S,10S)-8-(2-Benzyloxy-ethyl)-4-methyl-2-vinyl-1,7-dioxa-spiro[5.5]undecane-4,10-diol

There total 24 articles about (2R,4S,6R,8S,10S)-8-(2-Benzyloxy-ethyl)-4-methyl-2-vinyl-1,7-dioxa-spiro[5.5]undecane-4,10-diol 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: 94.0%

(2S,6S,8R,10S)-2-(2-Benzyloxy-ethyl)-10-hydroxy-10-methyl-8-vinyl-1,7-dioxa-spiro[5.5]undecan-4-one (215160-86-4) → (2R,4S,6R,8S,10S)-8-(2-Benzyloxy-ethyl)-4-methyl-2-vinyl-1,7-dioxa-spiro[5.5]undecane-4,10-diol (215160-87-5)

Guidance literature:

With L-Selectride; In tetrahydrofuran;

DOI:10.1016/S0040-4039(98)01629-3

Reference yield: 77.0%

(2R,4S,6R,8S,10S)-8-(2-Benzyloxy-ethyl)-10-benzyloxymethoxy-4-methyl-2-vinyl-1,7-dioxa-spiro[5.5]undecan-4-ol (881667-68-1) → (2R,4S,6R,8S,10S)-8-(2-Benzyloxy-ethyl)-4-methyl-2-vinyl-1,7-dioxa-spiro[5.5]undecane-4,10-diol (215160-87-5)

Guidance literature:

With toluene-4-sulfonic acid; In methanol; at 20 ℃; for 72h;

DOI:10.1021/ol0601601

Reference yield:

2-((2S,4S)-6-Benzyloxy-2-benzyloxymethoxy-4-hydroxy-hexyl)-pyran-4-one (881667-64-7) → (2R,4S,6R,8S,10S)-8-(2-Benzyloxy-ethyl)-4-methyl-2-vinyl-1,7-dioxa-spiro[5.5]undecane-4,10-diol (215160-87-5)

Guidance literature:

Multi-step reaction with 4 steps

1.1: 64 percent / trifluoroacetic acid / benzene / 72 h / 20 °C

2.1: tetrakis(copper(I) iodide-tributylphosphine) complex / diethyl ether / 1 h / -55 °C

2.2: diethyl ether / -78 °C

3.1: 22 mg / tetrahydrofuran / 4 h / -78 °C

4.1: 77 percent / p-toluenesulfonic acid / methanol / 72 h / 20 °C

With [(triphenylphosphine)CuI]4; toluene-4-sulfonic acid; trifluoroacetic acid; In tetrahydrofuran; methanol; diethyl ether; benzene; 3.1: Grignard reaction;

DOI:10.1021/ol0601601

upstream raw materials:

(2S,6S,8R,10S)-2-(2-Benzyloxy-ethyl)-10-hydroxy-10-methyl-8-vinyl-1,7-dioxa-spiro[5.5]undecan-4-one

(2R,4S,6R,8S,10S)-8-(2-Benzyloxy-ethyl)-10-benzyloxymethoxy-4-methyl-2-vinyl-1,7-dioxa-spiro[5.5]undecan-4-ol

(6R,8S,10S)-8-(2-Benzyloxy-ethyl)-10-benzyloxymethoxy-1,7-dioxa-spiro[5.5]undec-2-en-4-one

2-((2S,4S)-6-Benzyloxy-2-benzyloxymethoxy-4-hydroxy-hexyl)-pyran-4-one