Ultrasonic-assisted extraction and adsorption separation: Large-scale preparation of trans-ε-Viniferin, suffruficosol B and trans-Gnetin H for the first time.

In this study, a Standard Operating Procedure (SOP) for the large-scale extraction, enrichment, and separation of suffruticosol B (SB), trans-ε-Viniferin (TV), trans-gnetin H (TG) from oil tree peony seeds shell (PSS) was successfully constructed. The ultrasonic-assisted extraction (UAE), macroporous adsorption resin (MAR), and column chromatography (CC) were employed to extract, enrich and separate SB, TV and TG from PSS, and the conditions were optimized. The results implied that SB (1.

Bromido(eta(5)-carboxycyclopentadienyl)dinitrosylchromium(0) and (eta(5)-benzoylcyclopentadienyl)bromidodinitrosylchromium(0).

In the structures of each of the title compounds, [CrBr(C(6)H(5)O(2))(NO)(2)], (I), and [CrBr(C(12)H(9)O)(NO)(2)], (II), one of the nitrosyl groups is located at a site away from the exocyclic carbonyl C atom of the cyclopentadienyl (Cp) ring, with twist angles of 174.5 (3) and 172.5 (1) degrees.