Fine-tuning of biaryl dihedral angles: structural characterization of five homologous three-atom bridged biphenyls by X-ray crystallography

Edwards, D.J.; Pritchard, R.G.; Wallace, T.W.

doi:10.1107/S0108768105006713

Acta Crystallographica Section B
Acta Crystallographica
Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

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Figure 2
Synthesis of compounds (8)–(12). Reagents and conditions: (a) Me₂SO₄, Bu₄NI, KOH, then NaH, DMF, MeI (38% over two steps). (b) LiAlH₄, THF (91%). (c) PBr₃, ether. (d), 2 M aq. HCl–THF (1:1), heat [93% (8) from (15)]. (e) MeNH₂ [64% (9) over two steps via (16)]. (f) Na₂S [87% (10) over two steps via (16)]. (g) mCPBA [60% (11), 26% (12)].

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 61| Part 3| May 2005| Pages 335-345

doi:10.1107/S0108768105006713

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