University:
Shippensburg University of Pennsylvania
Course:
CHM 121 | Chemical Bonding
Academic year:

2023
Views:

10

Pages:

15
Author:

GrabCapacity

Steroids Ostereids: A secondary dichols cinth 27 to 29 caecbon atens of origin animal and plant • Crystalline selids with melting points range 100-200 C. The term "stera" means solid and 'e' means adcchois. • Number of compounds such as vitamin-D. Bile acid, ser hormones, adrenal corter hormones are belonging to steroids. Defination: tercaids may be defined as OS Comparends which one of yield the diel hydrocarbon the products when with selinium at 360°0 distilled Se steroids distan diel's hydrocarbons. • The structure of steroids 1.2- are cyclopentenco-phenanthrane based on Theleton The basic skeleton of stercids consists of seventeen Carbon atoms avranged in the form of 1.2- cyclopentanophenanthrone. The four ring pusat structure are A. B. c. and D.; while carbon atorni ане rumbered as shoush. Diel's hydrocarbon : w when 3-methyl-1,2- cyclopentenophenanthrene, melting 1260 is Knowh diel's porint bons hydrocarbons. It was first ontained when cholestrol was distilled with selenium at 360°c. when stercoids are chrusene and distilled yields mainly little picene. a If bath are substituted that carrying the substituent sites first in the alphabetice ender is assigned the lowest the lowest number. when; the configuration is not known for one or more by greek it is indicated Letter E prefixed by the appropriate appropriate locant (5) One atom is of the bridge head bydrogen replaced it may be desirable to restate the stereochemistry 92 fluor 5d pregnane instead of 5x unsaturation is indicated by changing ane to ene if the double bond Contain's one diene if it contains two double bord triene if it has three double hand # A Delta The symbol used to designate a C=C bond. If; c=C is between 4 and 5 referred as 44. of; c=c is between 5 and 10 designated as A5 M, double bond is not between sequentially numbered carbon, bath the Carbon are indicated in the name. 5 and 19 05 and 12. 12.