446882

应用筛选条件

关键词:'446882'

显示 1-10 共 10 条结果关于 "446882" 范围论文

Triphenylsilyl as a protecting group in the synthesis of 1, 12-heterodisubstituted p-carboranes

Douglass et al.

The Journal of organic chemistry, 65(5), 1434-1441 (2000-05-18)

A triphenylsilyl group is used as an auxiliary in the synthesis of heterodisubstituted p-carboranes via triphenylsilyl-p-carborane (1). The preparation of 1 is statistical, but with recovery of the starting p-carborane, the effective conversion to 1 is about 90%. Carborane 1

Intra-abdominal sepsis and perfluorocarbons: mechanism of protection.

D B Hoyt et al.

Current surgery, 39(3), 165-167 (1982-05-01)

Value of brominated fluorocarbons for the radiographic diagnosis of small-bowel obstruction: comparison with other contrast agents in rats.

S L Wootton et al.

AJR. American journal of roentgenology, 161(2), 409-416 (1993-08-01)

The disadvantages of water-soluble gastrointestinal contrast agents include high osmolality, contrast dilution, and severe toxicity if aspirated. Perfluorocarbons are nontoxic in the lung and peritoneal cavity. Because perfluorocarbons are immiscible with water, they have no osmotic effect and cannot be

Journal of Fluorine Chemistry, 61, 217-217 (1993)

Journal of Fluorine Chemistry, 67, 189-189 (1994)

Arthrography using perfluorocarbon compounds.

D R Enzmann et al.

Investigative radiology, 16(1), 46-49 (1981-01-01)

The neat liquid and an emulsion of two perfluorocarbon compounds were injected into the knee joints of dogs and a human cadaver to investigate their applicability for arthrography. Excellent delineation of joint structures was observed for as long as 24

Perfluorochemicals as gastrointestinal contrast agents for MR imaging: preliminary studies in rats and humans.

R F Mattrey et al.

AJR. American journal of roentgenology, 148(6), 1259-1263 (1987-06-01)

The ability to distinguish bowel from other intraabdominal structures is essential for the accurate diagnosis of intraabdominal disease with MR. Because perfluorochemicals have no protons, they cause no MR signal. Since they are immiscible with water, they create a signal

In vitro cellular effects of perfluorochemicals correlate with their lipid solubility.

V V Obraztsov et al.

American journal of physiology. Lung cellular and molecular physiology, 278(5), L1018-L1024 (2000-04-27)

Preclinical studies comparing perflubron partial liquid ventilation with conventional mechanical ventilation have indicated that perflubron partial liquid ventilation may exert some anti-inflammatory effects. To assess whether these effects were related to the lipid solubility properties of perflubron rather than to

Concentration of perfluorohexyl bromide in dog plasma and selected tissues.

M Scrime et al.

Journal of pharmaceutical sciences, 70(11), 1199-1201 (1981-11-01)

Beagle dogs received single perfluorohexyl bromide doses, either 30.2 g/kg po or 3.8 g/kg intratracheally. The apparent first-order plasma half-life during the terminal elimination phase was approximately 8 hr after oral treatment and greater than 8 hr after intratracheal administration.

A general synthesis of fluoroalkylated alkenes by palladium-catalyzed Heck-type reaction of fluoroalkyl bromides.

Zhang Feng et al.

Angewandte Chemie (International ed. in English), 54(4), 1270-1274 (2014-12-04)

An efficient palladium-catalyzed Heck-type reaction of fluoroalkyl halides, including perfluoroalkyl bromides, trifluoromethyl iodides, and difluoroalkyl bromides, has been developed. The reaction proceeds under mild reaction conditions with high efficiency and broad substrate scope, and provides a general and straightforward access

1/1