Nội dung được dịch bởi AI, chỉ mang tính chất tham khảo
Tosyl hóa và acyl hóa cellulose trong 1-allyl-3-methylimidazolium chloride
Tóm tắt
Tosyl hóa và acyl hóa cellulose được thực hiện dưới các điều kiện phản ứng nhẹ nhàng bằng cách sử dụng các dung môi là các chất lỏng ion imidazolium (ILs). Tính chất không phân hủy, độ nhớt thấp cũng như khả năng hòa tan cao của cellulose trong [amim]Cl đã khuyến khích chúng tôi thực hiện các phản ứng trong môi trường này. Các phản ứng được mô tả ở đây đã được tối ưu hóa cho dung môi cụ thể này nhằm thu được các dẫn xuất cellulose khác nhau với hiệu suất cao, đồng nhất và mức độ thay thế (DS) cao. Hai chất phản ứng được sử dụng để kích hoạt dạng in situ của axit cacboxylic là N,N′-carbonyldiimidazole (CDI) và 1-ethyl-3-(3′-dimethylaminopropyl)carbodiimide hydrochloride (EDCI). Các sản phẩm cuối cùng được phân tích bằng các kỹ thuật NMR trong dung dịch và trạng thái rắn.
Từ khóa
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