Abstract
The structure of 1-[bis(hydroxymethyl)methyl]-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline has been established by X-ray crystallography from diffractometer data: it crystallizes in the orthorhombic space group Pbca with a = 9.623(3), b = 7.411(2), c = 38.598(9) A ̊ , V = 2752.5(2.4) A ̊ 3 , Z = 8, D c = 1.290 g cm −3, and μ(CuK α) = 0.735 mm −1. The structure was solved by direct methods and refined to R = 0.068 for 1530 observed reflections. The dominantly 3 E conformation of the six-membered hetero ring is distorted towards the canonical forms 3 H 2 and 3 S 2. The glide plane related molecules are linked together by two intermolecular hydrogen bonds of NH … O and OH … O type in the directions of the a and b axes.
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