29828
Aminoalkenes are catalytically cyclized in the presence of cyclopentadienylbis ( oxazolinyl ) borato group 4 complexes { PhB ( C5H4 ) ( Ox ( R ) ) 2 } M ( NMe2 ) 2 ( M = Ti , Zr , Hf ; Ox ( R ) = 4 , 4 - dimethyl - 2 - oxazoline , 4S - isopropyl - 5 , 5 - dimethyl - 2 - oxazoline , 4S - tert - butyl - 2 - oxazoline ) at room temperature and below , affording five - , six - , and seven - membered N - heterocyclic amines with enantiomeric excesses of > 90 % in many cases and up to 99 % .
 Chemical: Aminoalkenes; Chemical: cyclopentadienylbis ( oxazolinyl ) borato; Chemical: { PhB ( C5H4 ) ( Ox ( R ) ) 2 } M ( NMe2 ) 2; Chemical: Ti; Chemical: Zr; Chemical: Hf; Chemical: Ox ( R ); Chemical: 4 , 4 - dimethyl - 2 - oxazoline; Chemical: 4S - isopropyl - 5 , 5 - dimethyl - 2 - oxazoline; Chemical: 4S - tert - butyl - 2 - oxazoline; Chemical: N - heterocyclic amines
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Aminoalkenes; Chemical: cyclopentadienylbis ( oxazolinyl ) borato; Chemical: { PhB ( C5H4 ) ( Ox ( R ) ) 2 } M ( NMe2 ) 2; Chemical: Ti; Chemical: Zr; Chemical: Hf; Chemical: Ox ( R ); Chemical: 4 , 4 - dimethyl - 2 - oxazoline; Chemical: 4S - isopropyl - 5 , 5 - dimethyl - 2 - oxazoline; Chemical: 4S - tert - butyl - 2 - oxazoline; Chemical: N - heterocyclic amines