Rossi, Renzo published the artcileSelective and efficient syntheses of phototoxic 2,2′:5′,2”-terthiophene derivatives bearing a functional substituent in the 3′- or the 5-position, HPLC of Formula: 69361-41-7, the publication is Tetrahedron (1991), 47(39), 8443-60, database is CAplus.
Efficient and selective procedures were developed to prepare on a medium scale several phototoxic 2,2′:5′:2″-terthiophene derivatives of general formula 2 (X = OEt, SMe) and 3 [Y = CHF2, OMe, Br, CO2Et, CONHCH2CHMe2, CH:CHCO2Et-(E), CH:CHCONHCH2CHMe2-(E), CC-CH2CH2CH:CHCONHCH2CHMe2-(E)] which are characterized by a functional substituent in the 3′- or the 5-position. Most of these procedures, which are based on the construction of the 2,2′:5′,2”-terthiophene moiety and involve palladium-mediated carbon-carbon bond forming reactions, overcome synthetic difficulties found in the synthesis of 2 and 3 starting from 2,2′:5′,2”-terthiophene 1 (R1-R6 = H).
Tetrahedron published new progress about 69361-41-7. 69361-41-7 belongs to bromides-buliding-blocks, auxiliary class PROTAC Linker,Aliphatic Linker, name is (4-Bromobut-1-yn-1-yl)trimethylsilane, and the molecular formula is C7H13BrSi, HPLC of Formula: 69361-41-7.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary