Main > ORGANIC CHEMICALS > Aliphatics > HydroSilylation > NAO 26-28 or NAO 30+ HA+R3SiH React

Product USA. C

SUBJECT Question:
Our Co. has successfully prepd deriv from your liquid NAO fractions. However attempts to extend these chemistries to your NAO 24-28 & 30+ NAO wax fractions showed reduced conversions & prodt selectivities. Can you suggest methods to improve wax conversions & increase prodt selectivity?

Answer:
Co.’s traditional NAO 24-28 & 30+ prodts contain significant quantities 30-45% of vinylidenes (2-alkyl-1-alkenes) & internal olefins. In some practiced chemistries, the vinylidene & internal olefins are either unreactive or reduce the prodt selectivity
To support these chemistries, we have introduced 2 new prodts.: NAO 26-28 & NAO 30+ HA (for NAO 30+ High Alpha). These prodts have alpha olefin contents > 80% & will provide increased reactivity & improved prodt selectivity in some chemistries practiced on the NAO 24-28 & 30+ fractions
Four chemistries that should benefit from the increased alpha content of the new NAO 26-28 & NAO 30+ HA prodts include
1. Hydrosilylation: R-CH=CH2+R’3SiH=R-CH2CH2-SiR’3
2. Epoxidation: R-CH=CH2+H2O2=R-(Epoxide)
3. Aromatic Alkylation: R-CH=CH2+C6H6=Ph-CH(CH2R’)(CH2R’’)
4. Koch reaction
SYNTHESIS Catalyzed by H2PtCl6
UPDATE 11.01
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