Cellulose acetate fibers are commonly made by a dry-spinning process, in which cellulose acetate is firstly dissolved in acetone and then the cellulose acetate acetone solution is extruded through spinneret orifices that have extremely small diameters. Any insoluble substances in acetone solutions could cause disruptions in fiber extrusion, and are not tolerated. In this work, acetone-insoluble...

In continuation of our research program to develop original synthetic methods using TDAE methodology on nitroheterocyclic substrates, we were able generate for the first time a stable carbanion in position 2 5-nitroimidazole scaffold. Starting from 2-chloromethyl-4-phenylsulfonylmethyl-5-nitroimidazole intermediate, prepared by vicarious nucleophilic substitution hydrogen (VNS) reaction, select...

In the title compound, C(10)H(11)NO(2)S, the acetyl-acetone group crystallizes in the keto form with all the non-hydrogen atoms in the acetyl-acetone group approximately co-planar with a maximum atomic deviation 0.055 (2) Å; the dihedral angle between the acetyl-acetone group and the pyridine ring is 85.90 (6)°. An intra-molecular O-H⋯O hydrogen bond involving the acetyl-acetone group forms a s...

Although a number of methods have been devised for the quantitative estimation of acetone in the urine, at the present time the method of Messinger,2 as modified by Huppert,s is the one most frequently employed, and is usually regarded as the most accurate one at our command.4 A recent paper by Folin5 offers the first satisfactory method for separately determining the acetone and diacetic acid ...

Comparatively few methods are available for the determination of the acetone bodies in blood. Marriott (1913-14, b) has described a method by which the nephelometric technique described by him (1913-14, a) could be applied to the determination of these substances in blood. Scott-Wilson’s reagent was used in this determination (Scott-Wilson, 1911). Marriott used this method in studying the relat...

Although a number of methods have been devised for the quantitative estimation of acetone in the urine, at the present time the method of Messinger,2 as modified by Huppert,s is the one most frequently employed, and is usually regarded as the most accurate one at our command.4 A recent paper by Folin5 offers the first satisfactory method for separately determining the acetone and diacetic acid ...

Although a number of methods have been devised for the quantitative estimation of acetone in the urine, at the present time the method of Messinger,2 as modified by Huppert,s is the one most frequently employed, and is usually regarded as the most accurate one at our command.4 A recent paper by Folin5 offers the first satisfactory method for separately determining the acetone and diacetic acid ...

A greener solvent acetone is applied to replace DMF and NMP for depositing high-quality perovskite thin films through the formation of an acetone–MAI–PbI 2 intermediate phase.