meso‐3,6‐Dimethyl‐3,6‐bis(tert‐butyldimethylsilyloxy)‐1,7‐octadiyne

meso-3,6-Dimethyl-3,6-bis(tert-butyldimethylsilyloxy)-1,7-octadiyne The title compound, C 22 H 42 O 2 Si 2 , shows a strictly antiperiplanar arrangement of the alkane chain with dihedral angles between the terminal alkyne groups and the alkane chains of -55 (6) and -60.7 (4)°. The central C-C bond contains the centre of inversion. The crystal packing shows interwoven meanders of the antiperiplanar 3,6-disubstituted diynes, with the methyl groups filling the space in between. The tert-butyldimethylsilyloxy groups of two meandering chains are oriented towards each other. The absolute values of the crystal data are compared with the data for rac-3,6-dimethyl-3,6-bis(tert-butyldimethylsilyloxy)-1,7-cyclododecadiyne [Boss et al. (1996). Acta Cryst. C52, 2370-2372].