1,2-Cyclobutanedicarboxylic acid, 3,4-bis[2-(diphenylphosphino)phenyl]-, bis(phenylmethyl) ester, (1S,2S,3S,4S)-

Base Information

Chemical Name:1,2-Cyclobutanedicarboxylic acid, 3,4-bis[2-(diphenylphosphino)phenyl]-, bis(phenylmethyl) ester, (1S,2S,3S,4S)-
CAS No.:835652-31-8
Molecular Formula:C56H46O4P2
Molecular Weight:844.926
Hs Code.:

Synonyms:

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Chemical Property of 1,2-Cyclobutanedicarboxylic acid, 3,4-bis[2-(diphenylphosphino)phenyl]-, bis(phenylmethyl) ester, (1S,2S,3S,4S)-

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Technology Process of 1,2-Cyclobutanedicarboxylic acid, 3,4-bis[2-(diphenylphosphino)phenyl]-, bis(phenylmethyl) ester, (1S,2S,3S,4S)-

There total 4 articles about 1,2-Cyclobutanedicarboxylic acid, 3,4-bis[2-(diphenylphosphino)phenyl]-, bis(phenylmethyl) ester, (1S,2S,3S,4S)- 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: 30.0%

: 835652-14-7
(1S,2S,3S,4S)-3,4-Bis-(2-trifluoromethanesulfonyloxy-phenyl)-cyclobutane-1,2-dicarboxylic acid dibenzyl ester

: 4559-70-0
Diphenylphosphine oxide

: 835652-31-8
(1S,2S,3S,4S)-3,4-Bis-(2-diphenylphosphanyl-phenyl)-cyclobutane-1,2-dicarboxylic acid dibenzyl ester

Guidance literature:: (1S,2S,3S,4S)-3,4-Bis-(2-trifluoromethanesulfonyloxy-phenyl)-cyclobutane-1,2-dicarboxylic acid dibenzyl ester; Diphenylphosphine oxide; With 1,3-bis-(diphenylphosphino)propane; N-ethyl-N,N-diisopropylamine; palladium diacetate; In dimethyl sulfoxide; at 100 ℃; for 12h;

With trichlorosilane; N,N-dimethyl-aniline; In toluene; at 100 ℃; for 12h;
DOI:10.1002/chem.200400488

Reference yield:

: 835652-10-3
(1S,2S,3S,4S)-3,4-Bis-(2-hydroxy-phenyl)-cyclobutane-1,2-dicarboxylic acid dibenzyl ester

: 835652-31-8
(1S,2S,3S,4S)-3,4-Bis-(2-diphenylphosphanyl-phenyl)-cyclobutane-1,2-dicarboxylic acid dibenzyl ester

Guidance literature:: Multi-step reaction with 2 steps

1.1: 95 percent / Et₃N / CH₂Cl₂ / 1 h / -78 °C

2.1: diisopropylethylamine; 1,3-bis(diphenyl-phosphino)propane / Pd(OAc)2 / dimethylsulfoxide / 12 h / 100 °C

2.2: 30 percent / HSiCl₃; PhNMe₂ / toluene / 12 h / 100 °C

With 1,3-bis-(diphenylphosphino)propane; triethylamine; N-ethyl-N,N-diisopropylamine; palladium diacetate; In dichloromethane; dimethyl sulfoxide;
DOI:10.1002/chem.200400488

Reference yield:

: 5248-12-4
anti head-to-head coumarin dimer

: 835652-31-8
(1S,2S,3S,4S)-3,4-Bis-(2-diphenylphosphanyl-phenyl)-cyclobutane-1,2-dicarboxylic acid dibenzyl ester

Guidance literature:: Multi-step reaction with 3 steps

1.1: 84 percent / TiCl₄ / 48 h / Heating

2.1: 95 percent / Et₃N / CH₂Cl₂ / 1 h / -78 °C

3.1: diisopropylethylamine; 1,3-bis(diphenyl-phosphino)propane / Pd(OAc)2 / dimethylsulfoxide / 12 h / 100 °C

3.2: 30 percent / HSiCl₃; PhNMe₂ / toluene / 12 h / 100 °C

With 1,3-bis-(diphenylphosphino)propane; titanium tetrachloride; triethylamine; N-ethyl-N,N-diisopropylamine; palladium diacetate; In dichloromethane; dimethyl sulfoxide;
DOI:10.1002/chem.200400488