69774-41-0

Upstream product

• 623-24-5 1,4-bis(bromomethyl)benzene 
• 78-82-0 Isobutyronitrile 
• 623-25-6 p-Xylylene dichloride 

Downstream Products

• 162659-15-6 1,4-Bis(2,2-dimethyl-3-oxobutyl)benzene 
• 69761-28-0 1,4-bis(2,2-dimethyl-3-aminopropyl)benzene 

Relevant academic research and scientific papers

A cyclic vicinal bis(tetraketone) and structural investigations of formoins

Investigations of simple formoins such as 2,5-bis(1,1-dimethyl-2- phenylethyl)-2,4-dihydroxyfuran-3(2H)-one (17), benzoylformoin (18), p-toluoylformoin (19), pivaloylformoin (20), and the 2,4-dihydroxy-2,5- bis(heterocycl-2-yl)furan-3-ones 21-23 (heterocycle = furan, thiophene, selenophene) by NMR spectroscopy in DMSO showed the dihydroxyfuranone skeleton and not an enediol structure. The formoin 17 was oxidized to the corresponding tetraketone 10, The intermolecular double benzoin condensation of 1,4-bis(2,2-dimethyl-3,4-dioxobutyl)benzene (27) affords, in low yield, the bis(formoin) 29, and this could be oxidized to provide 2,2,2′,2′,7, 7,7′,7′-octamethyl[8.8]paracyclophan-3,3′,4,4′5, 5′6,6′-octaone (9). The molecular structures of 17 and 29, the monohydrate of 10 (30), and also the dihydrate of 9 (31) are reported. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.

Synthesis and Conformational Analysis of 3,3,12,12-Tetramethylparacyclophane-2,13-dione

Three paracyclophanes (2-4) were synthesized by radical cyclization using the photoinduced SRN1 reaction.The structure of the most stable conformer of 4 was ascertained by means of X-ray crystallographic analysis, molecular mechanics calcu

Bis(aminoneopentyl) aromatics

Aromatic-aliphatic diamines of the formula STR1 in which Ar is an arylene or substituted arylene are useful in preparing thermally stable, rigid, polyamides, polyureas and polyurethanes having a repeating unit of the formula STR2 in which Ar is arylene or substituted arylene, X is --NH-- or --O--, n is 0 or 1, and R is a divalent organic radical.

Bis(2-methyl-2-cyanopropyl) aromatics

Aromatic-aliphatic dinitriles of the formula STR1 in which Ar is an arylene or substituted arylene are useful in the preparation of the corresponding amines which are intermediates for the preparation of thermally stable, rigid, polyamides.