Fig. 2: Synthesis of compounds 1–8, and the X-ray crystal structures of 4–6.
From: Accessing the main-group metal formyl scaffold through CO-activation in beryllium hydride complexes
Beryllium hydride complexes 6–8 can be synthesised via addition of a hydrido-borate to amido-beryllium bromides, 1–3, or through addition of PhSiH3 to the amido-beryllium benzyl complex 4 in the presence of a strong base. Addition of pinacol borane (HBpin) to 4 leads to transient hydride formation followed by HBpin activation in 5. a Synthesis of compounds 1–8. b Solid state structure of complex 4. c Solid state structure of complex 5. d Solid state structure of complex 6. Thermal ellipsoids for 4–6 at 30% probability. Selected distances (Å) and angles (°) for 4: Be1–C32 1.761(4); Be1–N1 1.590(3); Be1–P1 2.217(3); P1–Be1–C32 126.9(1); C32–Be1–N1 132.2(2); N1–Be1–P1 100.8(1). For 5: Be1–O1 1.633(4); Be1–O2 1.489(3); B1–O1 1.510(4); P1–B1 1.952(3); Be1–N1 1.615(3). For 6: Be1–P1 2.249(5); Be1–N1 1.623(4); Be1–Be1′ 2.125(6); Be1–H1 1.43(4); Be1–H1′ 1.50(3); P1–Be1–Be1′ 105.1(2); N1–Be1–Be1’ 128.9(3).
