6221-56-3

Usage

InChI:InChI=1/C14H8ClF3INO/c15-12-6-5-10(7-11(12)14(16,17)18)20-13(21)8-1-3-9(19)4-2-8/h1-7H,(H,20,21)

Upstream product

• 2121-66-6 tetraethyl 1,1,3,3-propanetetracarboxylate 
• 28781-92-2 Propane-1,1,3,3-tetracarboxylic acid tetramethyl ester 

Downstream Products

• 126750-11-6 2-phenyl-5-<2,2-di(hydroxymethyl)ethyl>-1,3-dioxane 
• 151593-04-3 Acetic acid (2S,4S)-4-acetoxymethyl-5-phenylsulfanyl-2-phenylsulfanylmethyl-pentyl ester 
• 120343-77-3 3-(4-phenyl-3,5-dioxacyclohexylmethyl)-1,5,8,11-tetraoxacyclotridecane 
• 6221-57-4 1,1,3,3-Tetrahydroxymethyl-propan-tetratosylat 

Relevant academic research and scientific papers

Determination of absolute configuration of (π-allyl) palladium complexes by NMR spectroscopy and stereoselective complexation

The chiral chelating ligand N,N'-bis(phenylethyl)bispidine (1) forms a rigid cavity which accommodates (π-allyl)palladium species with high selectivity. In the resulting complex, the absolute configuration of the π-allyl ligand can be determined by the de

Benzyl bispidine as an efficient replacement for (-)-sparteine in ring opening polymerisation

The synthesis and application of a dibenzyl-functionalized bispidine, in combination with 1-(3,5-bis(trifluoromethyl)phenyl)-3-cyclohexylthiourea (TU) co-catalyst, has been demonstrated to be an excellent catalyst for the controlled ring-opening polymerisation (ROP) of lactide and cyclic carbonate monomers. Notably, the polymerisation proceeds with negligible transesterification or epimerisation, with the polymerisation of stereopure l-lactide affording highly crystalline poly(lactide) with a Tm of 156 °C. ROP of racemic lactide results in the observation of a modest degree of stereocontrol such that the probability of isotactic enchainment, Pm = 0.74. Comparison of a range of alternative hydrogen bond donor co-catalysts revealed that TU displayed the highest polymerisation rates in combination with the dibenzyl-functionalized bispidine.

The double-meso trick

Lipcase-catalyzed acetylatin of a twice-prochirally shaped tetraol, 1, gave a mixture of diastereomeric diacetates from which an optically pure derivative belonging to the C2-symmetry group could be isolated.

MACROHETEROCYCLES. XLIII. SYNTHESIS OF (3N+1)-CROWN-n ETHERS

The condensation of substituted bispropane-1,3-diols with di-p-tosyloxy derivatives of polyethyleneglycols gave the corresponding bis-(3n+1)-crown-n ethers.The products mostly form complexes of the "sandwich" type with the cations of alkali and alkaline-earth metals.