| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a branched low molecule siloxane, especially to provide a method for producing methyltristrimethylsiloxysilane useful as an oil for siloxane industry, an oil for cosmetics, and a cleanser. SOLUTION: This method for producing the branched low molecule siloxane represented by the general formula (3) (R is H or a 1 to 20C monovalent hydrocarbon) is characterized by reacting a trichlorosilane represented by the general formula (1) with a disiloxane represented by the general formula (2) in the presence of a linear nitrogen chloride-phosphorus compound (LPNC) catalyst. Thereby, the branched low molecule siloxane, especially methyltristrimethylsiloxysilane can efficiently be obtained in a high yield.
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