Guo, Weisi; Wang, Qian; Zhu, Jieping published an article in 2021. The article was titled 《Selective 1,2-Aminoisothiocyanation of 1,3-Dienes Under Visible-Light Photoredox Catalysis》, and you may find the article in Angewandte Chemie, International Edition.HPLC of Formula: 1779-49-3 The information in the text is summarized as follows:
Selective three-component 1,2-diamination of 1,3-dienes with concurrent introduction of two orthogonally protected amino groups remains unknown despite its significant synthetic potential. We report herein that reaction of conjugated dienes such as (E)-PhCH:CHCH:CH2 with N-aminopyridinium salts such as I·BF4- (Ts = 4-MeC6H4SO2) and TMSNCS affords 1,2-aminoisothiocyanation products such as II in a highly chemo- and regio-selective manner under mild photoredox catalytic conditions. Mechanistic studies indicate that the facile isomerization of allyl thiocyanates to allyl isothiocyanates under photocatalytic conditions is responsible for the selective formation of the observed products. The mild isomerization protocol is expected to find applications in the synthesis of allyl isothiocyanates in a broad sense. In the part of experimental materials, we found many familiar compounds, such as Methyltriphenylphosphonium bromide(cas: 1779-49-3HPLC of Formula: 1779-49-3)
Methyltriphenylphosphonium bromide(cas: 1779-49-3) is an organophosphorus compound, with potential use as a precursor and a solvent in organic synthesis. And it is used widely for methylenation via the Wittig reaction.HPLC of Formula: 1779-49-3
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary