The largest database of trusted experimental protocols

8 protocols using 1 4 butane sultone

1

Synthesis of Functionalized Alkylamine Compounds

Check if the same lab product or an alternative is used in the 5 most similar protocols
All chemicals and reagents were used as received without further purification unless otherwise noted. Octylamine, triethylamine (Et3N), decylamine, dodecylamine, N-ethyldiisopropylamine (EDIPA), piperidine, 1,4-butanesultone, and anhydrous N,N-dimethylforamide (DMF) were purchased from Sigma-Aldrich (Milwaukee, WI, USA). N,N,N′,N′-Tetramethyl-O-(1H-benzotriazol-1-yl) uronium hexafluorophosphate (HBTU) was obtained from TCI America (Portland, OR, USA). Fmoc-photolabile linker was purchased from Advanced Chemtech (Louisville, KY, USA).
+ Open protocol
+ Expand
2

Fungal Pathogen Growth Media Optimization

Check if the same lab product or an alternative is used in the 5 most similar protocols
The fungal pathogens used in this study are shown in Table 1. The media used in this study were YPD (1% yeast extract [Bioshop, Canada], 2% peptone [Bioshop], 2% dextrose [Bioshop]), PDB (24 g potato dextrose broth [Himedia, India] in 1 L distilled water), RPMI 1640 medium (10.4 g RPMI 1640 powder [Sigma-Aldrich, USA], 34.5 g MOPS [3-(N-morpholino) propanesulfonic acid, Sigma-Aldrich], 2 g dextrose, in 1 L distilled water, with pH adjusted to 7.0 with NaOH), spider medium (10 g nutrient broth [Himedia], 10 g mannitol [Panreac, Spain], 2 g K2HPO4, in 1 L distilled water, adjusted to pH 7.2 with H3PO4), YNB (0.17% yeast nitrogen base w/o amino acids [Bioshop], 0.5% (NH4)2SO4, 2% dextrose) and modified Dixon medium (36 g malt extract [Merck, Germany], 20 g desiccated oxbile [Sigma-Aldrich], 10 mL Tween 40 [Sigma-Aldrich], 6 g peptone [Bioshop], 2 mL glycerol [Scharlab, Spain], 2 mL oleic acid [Sigma-Aldrich], in 1 L distilled water). All media were solidified by adding 2% agar (Bioshop) if needed, except mDixon medium (1.5% agar).
For synthesis reaction, N, N, N′, N′, N′′-pentamethyldiethylenetriamine [Sigma-Aldrich], alkyl bromides [Sigma-Aldrich], 1, 4-butanesultone [Sigma-Aldrich], and acetonitrile [POCh S. A., Poland] were purchased. All compounds were analytical reagent quality and used without further purification.
+ Open protocol
+ Expand
3

Synthesis and Characterization of Viscoelastic Surfactants

Check if the same lab product or an alternative is used in the 5 most similar protocols
Stearic
acid (reagent grade, 95%, Sigma Aldrich), 1,3-propanesultone (≥99%,
Sigma Aldrich), 3-(dimethylamino)-1-propylamine (99%, Sigma Aldrich),
1,4-butane sultone (≥99%, Sigma Aldrich), piperazine (99%,
Sigma Aldrich), CaCl2 (anhydrous, powder, 99.99%, Sigma
Aldrich), acetone (≥99.8%, Honeywell), ethyl acetate (≥99.5%,
Honeywell), diethyl ether (≥99.5%, Honeywell), methanol-d4 (99 atom % D, Sigma Aldrich), D2O (99.9 atom % D, Sigma Aldrich), and CDCl3 (99.8 atom
% D, Sigma Aldrich) were purchased and used as received. Before each
experiment, the fresh stock solutions of anhydrous CaCl2 (10–30%) were prepared in deionized water. The final products
of VES molecules and the intermediates were characterized by 1H-NMR and 13C-NMR on a 400 MHz Bruker spectrometer
(AVANCE III) using TMS as an internal solvent by dissolving samples
in deuterated solvents. The functional groups were ascertained by
an FT-IR spectrophotometer (Perkin Elmer 16F PC, Perkin Elmer Inc.
USA). The apparent viscosities of different VES formulations were
determined using a Brookfield Rheometer DV3T linked with thermosel
through a programmable temperature controller (Ametek, USA). Thermogravimetric
analysis (TGA) was performed to assess the thermal stability of the
final products using an SDT Q600 (V20.9 Build 20) thermal analyzer.
+ Open protocol
+ Expand
4

Softwood Kraft Lignin Characterization

Check if the same lab product or an alternative is used in the 5 most similar protocols
Softwood kraft lignin (KL) was supplied by FPInnovations, Thunder Bay, ON, Canada. Kaolin powder was supplied by Old Hickory Clay Company, Hickory, KY, USA. Sodium metabisulfite (Na2S2O5) (99.0%), formaldehyde (CH2O) (37.0%), polydimethyldiallyl ammonium chloride (20.0 wt.%), sodium hydroxide (97.0%), hydrochloric acid (37.0%), sodium nitrate (99.0%), dimethyl sulphate (98.0%) sulfuric acid (98.0%), D2O isotopic purity (99.8%), trimethylsilylpropanoic acid (TSP) (99.8%), para-hydroxybenzoic acid (99.0%), silicon oil, poly (ethylene oxide) and 1,4–butane sultone (99.8%) were purchased from Sigma-Aldrich (Canada). Potassium chloride (99.0%) and potassium hydroxide solution (8 M) were purchased from Fisher Scientific (Canada). Cellulose acetate dialysis membrane (molecular weight cut-off of 1000 g/mol) was obtained from Spectrum Laboratories Inc., USA.
+ Open protocol
+ Expand
5

Synthesis of 2,3-Butanediol Derivatives

Check if the same lab product or an alternative is used in the 5 most similar protocols
LA (98%), 2,3-butanediol
(98%, CAS Number 513-85-9), pyridine (98%), 1,4-butane sultone, (98%),
trifluoromethanesulfonic acid, (97%), HCl (37%), H2SO4 (97%), and Amberlyte IR-120 (H-form) were provided by Sigma-Aldrich.
Ethyl acetate (99.5%) was purchased from Fisher Scientific. All solvents
(hexane, toluene, and diethyl ether) used were of ACS grade and used
as received.
+ Open protocol
+ Expand
6

Synthesis of Imidazolium Cationic Surfactants

Check if the same lab product or an alternative is used in the 5 most similar protocols
MA used in the reaction
was of HPLC grade. Azobisisobutyronitrile (AIBN) (98%), which was
recrystallized using MA, was purchased from Avra Synthesis. Castor
oil, NaOH (60% suspension in paraffin oil), 98% concentrated H2SO4, and benzimidazole were obtained from SD Fine
Chemicals. 1,4-Butane sultone, methyl imidazole, and 4-vinylbenzyl
chloride (90%) were purchased from Sigma-Aldrich, India.
+ Open protocol
+ Expand
7

Jatropha Seed Extraction Protocol

Check if the same lab product or an alternative is used in the 5 most similar protocols
Local dried Jatropha seeds were collected from the Kaliabor Nursery, Kaliabor, Assam, India. 1-Methylimidazole (99%), 1,4-butane sultone (≥99%), and 2-propanol (anhydrous, 99.5%) were procured from Sigma Aldrich, India. Methanol (≥99%, GC grade), hexane (fraction from petroleum), HCl (35% for analysis), and KOH (analytical grade) were purchased from Merck India Limited. All the chemicals were used as received without any further purification.
+ Open protocol
+ Expand
8

Synthesis of 1-Butylimidazole from Imidazole

Check if the same lab product or an alternative is used in the 5 most similar protocols
Imidazole (Him), methyl Imidazole (mim), butyl bromide, 1,4butanesultone, sodium ethoxide, p-nitrophenyl acetate, sulfuric acid (97-98%), and sodium bisulfate used as precursors or reactants were from Sigma-Aldrich. Methanol, sulfuric ether, ethyl acetate, hexane, acetone, butyl alcohol, and dichloromethane used as solvents or eluents were from Sigma-Aldrich. 1-ButylImidazole (bim) was synthesized by reaction of Imidazole with butyl bromide through an aliphatic nucleophilic substitution, following a previously reported method that employs sodium ethoxide for deprotonating the Imidazole, 27, 28 as it described in the ESI. †
+ Open protocol
+ Expand

About PubCompare

Our mission is to provide scientists with the largest repository of trustworthy protocols and intelligent analytical tools, thereby offering them extensive information to design robust protocols aimed at minimizing the risk of failures.

We believe that the most crucial aspect is to grant scientists access to a wide range of reliable sources and new useful tools that surpass human capabilities.

However, we trust in allowing scientists to determine how to construct their own protocols based on this information, as they are the experts in their field.

Ready to get started?

Sign up for free.
Registration takes 20 seconds.
Available from any computer
No download required

Sign up now

Revolutionizing how scientists
search and build protocols!