Safety of 5-Bromobenzo[d][1,3]dioxoleIn 2020 ,《Intramolecular Csp3-H/C-C bond amination of alkyl azides for the selective synthesis of cyclic imines and tertiary amines》 appeared in Chemical Science. The author of the article were Wen, Xiaojin; Li, Xinyao; Luo, Xiao; Wang, Weijin; Song, Song; Jiao, Ning. The article conveys some information:
The intramol. Csp3-H and/or C-C bond amination was very important in modern organic synthesis due to its efficiency in the construction of diversified N-heterocycles. A novel intramol. cyclization of alkyl azides for the synthesis of cyclic imines I [Ar = Ph, 4-MeC6H4, 4-OMeC6H4, etc.; R = H, 2-Me, 2-Et, etc.] and tertiary amines II [n = 1, 2] through selective Csp3-H and/or C-C bond cleavage was reported. Two C-N single bonds or a C=N double bond were efficiently constructed in these transformations. The carbocation mechanism differed from the reported metal nitrene intermediates and therefore enabled metal-free and new transformation. In addition to this study using 5-Bromobenzo[d][1,3]dioxole, there are many other studies that have used 5-Bromobenzo[d][1,3]dioxole(cas: 2635-13-4Safety of 5-Bromobenzo[d][1,3]dioxole) was used in this study.
Furthermore, the coupling of 5-Bromobenzo[d][1,3]dioxole(cas: 2635-13-4) with β-methallyl alcohol was catalyzed by Pd(OAc)2 in combination with P(t-Bu)3.Safety of 5-Bromobenzo[d][1,3]dioxole
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary