Advices For Studying Organic Chemistry

[with a structure related to Wurzite (ZnS)], and a new group of compounds

called fullerenes.

4. Unusual (sometimes highly strained) cyclic hydrocarbon:
   
   
   1. In 1982, Leo A. Paquette’s group (Ohio State University) announced the
      successful synthesis of the “complex, symmetric, and aesthetically appealing”
      molecule called dodecahedrane. (aesthetic = esthetic, 美的, 審美上的; 風雅
      的)
   
   
   
   

or

Bicyclo[1,1,0]butane Cubane Prismane Dodecahedrane

4.16 PHEROMONES: COMMUNICATION BY MEANS OF CHEMICALS

1. Many animals, especially insects, communicate with other members of their
   species based on the odors of pheromones.

1. Pheromones are secreted by insects in extremely small amounts but they can
   cause profound and varied biological effects.


2. Pheromones are used as sex attractants in courtship, warning substances, or
   “aggregation compounds” (to cause members of their species to congregate).


3. Pheromones are often relatively simple compounds.

CH 3 (CH 2 ) 9 CH 3 (CH 3 ) 2 CH(CH 2 ) 14 CH 3
Undecane 2-Methylheptadecane
(cockroach aggregation pheromone) (sex attractant of female tiger moth)

4) Muscalure is the sex attractant of the common housefly (Musca domestica).