TAILIEUCHUNG - Lecture Organic chemistry - Chapter 4: Cycloalkanes

This lecture introduces you to cycloalkanes. The following will be discussed in this chapter: Naming Cycloalkanes, stereoisomers, definition of stereoisomers, ring strain, strain relief through “banana” bonds,.and other contents. | Chapter 4: Cycloalkanes Abundant in nature, especially in polycyclic frames: the steroid sex hormones Testosterone Estrone Regulate growth and function of reproductive organs; stimulate development of secondary sexual characteristics O H C H3 H O H H O H H H C H3 C H3 O H 7/20/2015 © Univesity of California 1 Diosgenin was first extracted from the Mexican yam in 1941 and this continues to provide a source for the production of sex steroids including norethisterone (norethindrone in the USA) and progesterone CHEMICAL HIGHLIGHT 4-2 Controlling Fertility: From “the Pill” to RU-486 The menstrual cycle is controlled by three protein hormones from the pituitary gland. The follicle-stimulating hormone (FSH) induces the growth of the egg, and the luteinizing hormone (LH) induces its release from the ovaries and the formation of an ovarian tissue called the corpus luteum. The third pituitary hormone (luteotropic hormone, also called luteotropin or prolactin), stimulates the corpus luteum and .

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