Sentence examples for procedures of methyl from inspiring English sources

Scheme 1 Synthetic procedures of methyl matrinate and matrinol derivatives.

Reagents and conditions: (a) 5 N NaOH, reflux, 9 h, 6 N HCl, pH = 5 6; (b) 2 N MeOH/HCl, reflux, 2 h; (c) RBr, K2CO3, MeCN, r.t., overnight; (d) LiAlH4, THF, r.t., 30 min; (e) R2MgCl, THF, 0 25 °C, reflux, 2 h; (f) TsCl, CH2Cl2, TEA, 4-DMAP; (g) alkylmagnesium chloride, THF, reflux, 2 h Scheme 2 Synthetic procedures of methyl (Z -Δβγ-matrinic crotonate and (Z -Δβγ-matrinic crotonol derivatives.

The procedures of methyl derivatization and purification were optimized for this study.

A procedure for determination of methyl tert.-butyl ether (MTBE) in water by headspace solid-phase microextraction (HS-SPME) has been developed.

General procedure for formation of methyl (5R / S )-2-acylamino-5 C -benzyloxylo-hexopyranosideslo -hexopyranosides (13– 19): To a 1% solution of 6– 12 (0.5 mmol) in a mixture of CH2Cl2/benzyl alcohol (1 1 v/ v, 12 mL), 3-chloroperbenzoic acid (70%, 0.6 mmol) was added, and the mixture was stirred (2 h).

General procedure for formation of methyl 3,4-di O -acetyl-2-acylamido-2,6-dideoxy-β d - xylo -hex-5-enosides (6– 12): Tributyl phosphine (0.2 mL, 0.8 mmol) was added to azide 2 (200 mg, 0.7 mmol) in a solution of THF (5 mL) and H2O (0.5 mL) at 0°C and the solution stirred.

General procedure for methyl ester formation of tocopheryl carboxylates.

A simple procedure for the determination of methyl tert-butyl ether (MTBE), ethyl tert-butyl ether (ETBE), ethyl butyl ether (EBE), tert-amyl methyl ether (TAME), benzene, toluene, ethylbenzene, and xylenes (BTEX) in water using headspace (HS) solid-phase microextraction (HS-SPME) was developed.

Synthesis and extraction of methyl thiophene aldehyde were carried out following established procedure [26].

The content of methyl ester obtained was calculated according to European regulated procedure EN14103.

Blank experiment: polymerization of methyl methacrylate was carried out by adopting mentioned polymerization procedure without adding catalyst at 60 ± 1°C for 40 min.