Synthesis of diphenyl sulfides. V. Nitro group mobility in 4-nitrodiphenyl sulfide derivatives was written by Sevbo, D. P.;Stepanova, T. F.;Nekhoroshev, A. A.. And the article was included in Zhurnal Organicheskoi Khimii in 1980.COA of Formula: C9H9NO5 This article mentions the following:
5,4,2-BrCl(O2N)C6H2O2Et reacted with 2-O2NC6H4SH (I) in DMF containing Et3N to give 4,2,5-Cl(X)(2-O2NC6H4S)C6H2CO2Et (X = O2N, 2-O2NC6H4S). Analogous reaction of 5,2-Cl(O2N)C6H3CO2Me (II) gave 2,5-X(2-O2NC6H4S)C6H3CO2Me (same X), but II and PhSH gave only 2,5-(PhS)2C6H3CO2Me under these conditions. Similarly, 5,2,3-Br(O2N)(MeO)C6H2CO2Me and I gave only 3,2,5-MeO(2-O2NC6H4S)2C6H2CO2Me. However, 2-O2NC6H4R [R = CO2Me, SC6H4NO2-4, SC6H3(NO2)Me-4,3, SC6H2(CO2Me)(NO2)NH2-3,4,5] were inert to arylthiolates. Dinitro esters III (R = Me, R1 = H, Me; R = CH2Ph, R1 = H; X = Br) reacted with I to give to corresponding III (X = 2-O2NCH4S) and disubstitution product IV in ≥9:1 ratio. IV (R = CH2Ph, R1 = H) were cleaved with refluxing CF3CO2H to give 77% IV (R = R1 = H), which reacted with CH2N2 to give IV (R = R1 = Me). The latter, also prepared by treating III (R = R1 = Me; X = Br) with excess II, was hydrogenated over Raney Ni to give PhNH2 and 2,5-X1(MeO)C6H3CO2Me (V; X1 = H2N) and then acetylated to give V (X1 = AcNH), which was also prepared analogously from 2,5-O2N(MeO)C6H3CO2H. In the experiment, the researchers used many compounds, for example, Methyl 5-methoxy-2-nitrobenzoate (cas: 2327-45-9COA of Formula: C9H9NO5).
Methyl 5-methoxy-2-nitrobenzoate (cas: 2327-45-9) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.COA of Formula: C9H9NO5
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics