Trong nghiên cứu này, 5 dẫn xuất benzo[d]thiazole (3a-3e) đã được tổng hợp thành công qua 2 bước thông qua phản ứng ghép chéo Suzuki từ ​​2-(4-bromophenyl)benzo[d]thiazole (2) và các dẫn xuất arylboronic acid với hiệu suất khá cao từ 80-95%. Cấu trúc của các hợp chất này được xác định thông qua việc phân tích phổ NMR và phổ khối. Đồng thời thông qua việc kết hợp sử dụng lò vi sóng gia đình trong tổng hợp dẫn xuất 2, chất chìa khóa trong tổng hợp các dẫn xuất tiếp theo đã góp phần tiết kiệm chi phí, thời gian trong quá trình tổng hợp.

Fun activities are the main activities of preschoolers; they are also a path, method, and means of conducting comprehensive education for preschoolers (from 3 to 6 years old), including education on sustainable environmental behaviour. This research aims to point out the factors of fun activities that affect and influence the formation and development of sustainable environmental behaviour of preschoolers. The author, in this research, surveyed 300 preschool teachers in Hanoi and directly observed 156 preschoolers in 11 preschools in Hanoi to collect data and used exploratory factor analysis (EFA) to analyse the data. The research found that there are 3 factors of fun activities that affect the awareness, attitude, and sustainable environmental behaviour of preschoolers, including: Contents of fun activities related to environmental education and environmental protection, Rules of the game on environmental education and environmental protection, and Specific actions on environmental education and environmental protection. The research also pointed out the fundamentals of sustainable environmental behaviour, which are environmental awareness, attitude towards the environment, and environmental protection acts. The research findings are expected to provide the basis and reference for further research on the impacts of fun activities on the formation and development of sustainable environmental behaviour of children aged 3 to 6. Thereby, the author recommends that preschools should design and build in the direction of integrating fun activities related to environmental education and environmental protection with other educational contents and activities in preschools; and simultaneously guide preschoolers to understand the specific regulations when participating in fun activities related to environmental education and innovative methods to organise and implement fun activities related to environmental education in the direction of allowing children to directly experience and perform environmental protection behaviours.

In this paper, we report the synthesis of four new 1,1’‐diphenyl‐2‐thienyl‐2’‐(4‐substituted‐styryl) ethenes via one‐step oxidative Heck coupling reaction of 1,1’‐diphenyl‐2,2’‐dithienylethene (DPDTE). This is a useful method to alkenylate DPDTE in order to enhance its fluorescence as well as its aggregation‐induced emission (AIE) properties. 1,1’‐Diphenyl‐2‐thienyl‐2’‐(4‐methylstyryl)ethene showed low fluorescent intensity in CHCl3 solution but very high AIE intensities. On the other hand, 1,1’‐diphenyl‐2‐thienyl‐2’‐(4‐acetoxystyryl)ethene showed both high fluorescence in CHCl3 solution and AIE intensities.