In Situ Manganese Dioxide Alcohol Oxidation−Wittig Reactions:  Preparation of Bifunctional Dienyl Building Blocks

2000 ◽  
Vol 65 (2) ◽  
pp. 616-620 ◽  
Author(s):  
Xudong Wei ◽  
Richard J. K. Taylor
Keyword(s):  
Manganese Dioxide ◽  
Alcohol Oxidation ◽  
Building Blocks ◽  
Wittig Reactions

In situ alcohol oxidation-Wittig reactions

1998 ◽  
Vol 39 (22) ◽  
pp. 3815-3818 ◽  
Author(s):  
Xudong Wei ◽  
Richard J.K Taylor
Keyword(s):  
Alcohol Oxidation ◽  
Wittig Reactions

ChemInform Abstract: In situ Aerobic Alcohol Oxidation-Wittig Reactions.

ChemInform ◽  
2010 ◽  
Vol 33 (16) ◽  
pp. no-no ◽  
Author(s):  
Guncheol Kim ◽  
Don Gyu Lee ◽  
Sukbok Chang
Keyword(s):  
Alcohol Oxidation ◽  
Wittig Reactions

ChemInform Abstract: In situ Alcohol Oxidation-Wittig Reactions Using Non-stabilized Phosphoranes.

ChemInform ◽  
2010 ◽  
Vol 33 (26) ◽  
pp. no-no
Author(s):  
Leonie Blackburn ◽  
Chengxin Pei ◽  
Richard J. K. Taylor
Keyword(s):  
Alcohol Oxidation ◽  
Wittig Reactions

ChemInform Abstract: In situ Alcohol Oxidation-Wittig Reactions.

ChemInform ◽  
2010 ◽  
Vol 29 (33) ◽  
pp. no-no
Author(s):  
X. WEI ◽  
R. J. K. TAYLOR
Keyword(s):  
Alcohol Oxidation ◽  
Wittig Reactions

In Situ Alcohol Oxidation-Wittig Reactions Using Non-stabilised Phosphoranes

Synlett ◽  
2002 ◽  
Vol 2002 (02) ◽  
pp. 0215-0218 ◽  
Author(s):  
Leonie Blackburn ◽  
Chengxin Pei ◽  
Richard J. K. Taylor
Keyword(s):  
Alcohol Oxidation ◽  
Wittig Reactions

Laboratory and in-situ analysis of comet dust

1988 ◽  
Vol 46 ◽  
pp. 8-9
Author(s):  
D.E. Brownlee ◽  
A.L. Albee
Keyword(s):  
Electron Microscopy ◽  
Solar System ◽  
Laboratory Study ◽  
Isotopic Analysis ◽  
Building Blocks ◽  
Sem Analysis ◽  
Early Solar System ◽  
Cometary Material ◽  
Comet Dust

Comets are primitive, kilometer-sized bodies that formed in the outer regions of the solar system. Composed of ice and dust, comets are generally believed to be relic building blocks of the outer solar system that have been preserved at cryogenic temperatures since the formation of the Sun and planets. The analysis of cometary material is particularly important because the properties of cometary material provide direct information on the processes and environments that formed and influenced solid matter both in the early solar system and in the interstellar environments that preceded it.The first direct analyses of proven comet dust were made during the Soviet and European spacecraft encounters with Comet Halley in 1986. These missions carried time-of-flight mass spectrometers that measured mass spectra of individual micron and smaller particles. The Halley measurements were semi-quantitative but they showed that comet dust is a complex fine-grained mixture of silicates and organic material. A full understanding of comet dust will require detailed morphological, mineralogical, elemental and isotopic analysis at the finest possible scale. Electron microscopy and related microbeam techniques will play key roles in the analysis. The present and future of electron microscopy of comet samples involves laboratory study of micrometeorites collected in the stratosphere, in-situ SEM analysis of particles collected at a comet and laboratory study of samples collected from a comet and returned to the Earth for detailed study.

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