Nic Miloslav       Example 9    <<       >>       BOOK      KEYWORDS      EXAMPLES      HELP     

Find all monohalogen derivatives of benzo[a]anthracene.
 
     Query 1         Query 2   

     Query 1       HOME      Hitset 1     

There are 12 possible positions to put halogen in and so explicit search for each individual isomer can be a time consuming task. These queries represent a viable alternative.

  Q1    1234 hits  
impl.free.sites, no.impl.ring.closures
  Q2    71 hits  
       mf = C18H11F or mf = C18H11Cl or mf = C18H11Br or mf = C18H11I       
  Note:  
Formula must be given in order: C, H and then alphabetic order (Hill order)
  Q3    17 hits  
       .Q1 and .Q2       
     Hitset 1       HOME      Query 1     
 1 

2332022
 2 

2456810

  Comments:

     Query 2       HOME      Hitset 2     

  Q1    1234 hits  
impl.free.sites, no.impl.ring.closures
  Q2    1424 hits  
       (elc = F or elc = Cl or elc = Br or elc = I) and elc = C18 and elc = H11       
  Q3    28 hits  
       .Q1 and .Q2       
     Hitset 2       HOME      Query 2     
 1 

2332022
 2 

2456810
 3 

2532598
 4 

2565124

  Comments: