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The title compound, (Z)-1,2-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)- 1,2-bis(4-methoxyphenyl)ethene, C28H38B2O6, has a cis arrangement of two boronate ester substituents and two 4-methoxyphenyl substituents on its central C=C double bond, which shows a slight twist of ca 8.5°. All four substituents are rotated considerably out of the alkene plane to reduce steric hindrance. The BO2C2 five-membered rings have a twist conformation.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablocks 1, global

fcf

Structure factor file (CIF format)
Contains datablock tbm17

CCDC reference: 127051

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