(+)-3-<(S)-2',4'-<(S)-benzylidenedioxy>butyl>-7,8-dimethyl-1,5-dihydro-2,4-benzodithiepin

Base Information

• Chemical Name: (+)-3-<(S)-2',4'-<(S)-benzylidenedioxy>butyl>-7,8-dimethyl-1,5-dihydro-2,4-benzodithiepin
• CAS No.: 94340-01-9
• Molecular Formula: C₂₂H₂₆O₂S₂
• Molecular Weight: 386.579
• Mol file: 94340-01-9.mol

Synonyms:(+)-3-<(S)-2',4'-<(S)-benzylidenedioxy>butyl>-7,8-dimethyl-1,5-dihydro-2,4-benzodithiepin

Chemical Property of (+)-3-<(S)-2',4'-<(S)-benzylidenedioxy>butyl>-7,8-dimethyl-1,5-dihydro-2,4-benzodithiepin

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (+)-3-<(S)-2',4'-<(S)-benzylidenedioxy>butyl>-7,8-dimethyl-1,5-dihydro-2,4-benzodithiepin

There total 3 articles about (+)-3-<(S)-2',4'-<(S)-benzylidenedioxy>butyl>-7,8-dimethyl-1,5-dihydro-2,4-benzodithiepin 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: 83.0%

1,5-Dihydro-7,8-dimethyl-2,4-benzodithiepine (36568-23-7) + (2S,4R)-4-Bromo-2-phenyl-[1,3]dioxane → (+)-3-<(S)-2',4'-<(S)-benzylidenedioxy>butyl>-7,8-dimethyl-1,5-dihydro-2,4-benzodithiepin (94340-01-9)

Guidance literature:

With n-butyllithium; In tetrahydrofuran;

DOI:10.1016/S0040-4039(01)91192-X

Reference yield:

(2S,4S)-2-Phenyl-4-tosyloxymethyl-1,3-dioxan (79413-94-8) → (+)-3-<(S)-2',4'-<(S)-benzylidenedioxy>butyl>-7,8-dimethyl-1,5-dihydro-2,4-benzodithiepin (94340-01-9)

Guidance literature:

Multi-step reaction with 2 steps

1: 97 percent / LiBr, NaHCO₃ / dimethylformamide / 2 h / 90 °C

2: 1.) n-BuLi / 1.) n-hexane, -13 - -10 deg C, 30 min, 2.) n-hexane/THF, -50 - -30 deg C, 30 min, -30 deg C, 8 h

With n-butyllithium; sodium hydrogencarbonate; lithium bromide; In N,N-dimethyl-formamide;

DOI:10.1016/S0040-4020(01)91385-7

Reference yield:

1,5-Dihydro-7,8-dimethyl-2,4-benzodithiepine (36568-23-7) + (2S,4S)-(+)-4-bromomethyl-2-phenyl-1,3-dioxane (94340-00-8) → (+)-3-<(S)-2',4'-<(S)-benzylidenedioxy>butyl>-7,8-dimethyl-1,5-dihydro-2,4-benzodithiepin (94340-01-9)

Guidance literature:

With n-butyllithium; Yield given. Multistep reaction; 1.) n-hexane, -13 - -10 deg C, 30 min, 2.) n-hexane/THF, -50 - -30 deg C, 30 min, -30 deg C, 8 h;

DOI:10.1016/S0040-4020(01)91385-7

upstream raw materials:

1,5-Dihydro-7,8-dimethyl-2,4-benzodithiepine

(2S,4S)-(+)-4-bromomethyl-2-phenyl-1,3-dioxane

(2S,4S)-2-Phenyl-4-tosyloxymethyl-1,3-dioxan

Downstream raw materials:

3-<(S)-2',4'-<(S)-benzylidenedioxy>butyl>-3-<4-(1-ethoxyethoxy)butyl>-7,8-dimethyl-1,5-dihydro-2,4-benzodithiepin

(2S,4S)-4-{3-[4-(1-Ethoxy-ethoxy)-butyl]-7,8-dimethyl-1,5-dihydro-benzo[e][1,3]dithiepin-3-ylmethyl}-2-phenyl-[1,3]dioxane

(S)-(+)-1,7-dioxaspiro<5.5>undecane

(R)-(-)-1,7-dioxaspiro<5.5>undecane