Naturally occurring phytic acid: an advanced Brønsted acid catalyst for direct amination reactions of allylic alcohols.

Phytic acid is abundant in various plant-based foods and is considered agricultural waste. Here, we demonstrate the effectiveness of this organophosphorus acid as a sustainable catalyst for the direct amination reactions of allylic alcohols. This approach is successfully performed in air using technical grade solvents, affording allylanilines in moderate to excellent yields. Challenging electron-rich anilines react effectively, and their corresponding Friedel-Crafts side products can be minimised under the optimised reaction conditions. A variety of asymmetrically substituted allylic alcohols are tolerated, while the scope is extended to amide, and C-, O- and S-nucleophiles.

Telosmoside A21, a new steroid glycoside from the roots of Jasminanthes tuyetanhiae.

A new glycoside, telosmoside A21 (1) and two known compounds, telosmoside A6 (2) and telosmoside A1 (3), were isolated from the roots of Jasminanthes tuyetanhiae. The structure of compound 1 was identified from its spectroscopic data and by comparison with the literature.