Patent ID: 11905174
Assignee: ENTEGRIS, INC.
Field: Materials, metallurgy (Chemistry)
Classification: CPC C | IPC C

Claim 13:
14. A method for preparing a compound having the formula (II):

(H)z(I)ySi—Si(I)y(H)z  (II)

wherein y is 2 or 3, z is 0 or 1, and the sum of y and z is 3, the method comprising:
contacting a compound of the formula (B):

Hz((R1)(R2)N)ySi—Si(N(R2)(R1))yHz  (B);

wherein (i) each R1 and each R2 is independently chosen from a C1-C6 alkyl group, a C3-C8 cycloaliphatic group, or hydrogen, or (ii) R1 and R2 are taken together with the nitrogen atom to which they are bonded to form a C4-C7 nitrogen-containing saturated or aromatic ring, provided that no more than one of R1 and R2 is hydrogen;

with a compound of the formula:, wherein R3 is chosen from C1-C6 alkyl, C1-C6 substituted alkyl, benzyl, substituted benzyl, biphenyl, naphthyl, phenyl, or substituted phenyl,

to produce a compound of formula (II).