Reactions of 9-anthracenethiol with trivalent phosphorus compounds.

Reaction of Trivalent Organophosphorus Compounds with Selenium

Over the years, evidence has been accumulating [1, 2] that selenium is an essential nutrient in animals, preventing various serious deficiency diseases. On the other hand, no such firm proof for the need of selenium in human nutrition has been established, although several instances of beneficial effects as a result of selenium supplementation of human diet have been reported [3-5]. Although va...

Synthesis of Phosphorus Derivatives via Multicomponent Reactions

Stable derivatives of oxaphosphaphenanthrenes were prepared using multicomponent reactions of 3-bromo-2-naphthol, dialkyl acetylenedicarboxylate and trimethyl or triphenyl phosphite under microwave conditions with good yields. 

Several Reactions of Isocyanide and Related Compounds 1 9 6 9 Shiro Koba Y Ashi

detection of volatile compounds of medicinal plants with some nano-sorbents using modified or new methodologies and investigation of antioxidant activity of their methanolic extracts

in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...

A trivalent graph with 58 vertices and girth 9

A regular graph with valency k and girth g will be referred to as a (/,. ~.,, ,:_';~,~,+ Petersen 's graph is a (3, 5)-graph; indeed, it is the (unique) smallest (3. :,)-, ~,~;+ In general, the problem of finding a smallest (k, g)-graph is hard, an~ ~;-~,~: .~;;.-,~,'~/~ is known only for a few values of k and g. The particular case k = 3 , g = 9 has been the subject of much e~ i~::~..t~r~,...,...