Oxidative transformations of cembrane diterpenoids III. Epoxycembrenes
Summary1. It has been established that the epoxidation of cembrene with perbenzoic and peracetic acids takes place stereospecifically at each of the trisubstituted double bonds with the formation of 4S,5R-, 7S,8S-, and 11S,12S-monoepoxycembrenes, the structures and absolute configurations of which have been established by spectral methods.2. Epoxidation of cembrene at the C11–C12 double bonds under the conditions used takes place preferentially as compared with epoxidation at the C7–C8 double bond.
Marine natural products: nephthenol and epoxynephthenol acetate, cembrene derivatives from a soft coral
Two new cembrene derivatives (1) and (5) have been isolated from a Pacific soft coral and their structures have been established by spectroscpic analyses and chemical degradations.
Religion and school
The report presents and argues in favor of the thesis that the secular school offers no alternative in modern society. Simultaneously, the author displays the basic contours of spiritual physiognomy of such a modern school which in many ways differs from the, school we know in this country. The school the author pleads for does not decide among various contents that influence forming of the young, within which the line is established between theism - atheism, but, on the contrary, pleads for the principle of humanistic education. The predominant here is the notion of methodological skepticism which marks the principle by which the process of education should be realized as though there were no God, or - which is on the same level - as though there were God. Out of this basic principle any others upon which the concept of modern secular school the author pleads for is established can be drawn. It ought not to neglect the rich, scientifically confirmed knowledge on the phenomenon of religion and atheism, which should be, presented in all school subjects where the contents allow for it as well as the Religious Culture should be introduced as a compulsory subject. By introducing this subject as a collection of knowledge on the phenomenon of the, religious, we would avoid imposing a particular religious culture as an attitude, behavior, belief and evaluation.