| US 11,795,184 B2 | ||
| Halogermanides and methods for the preparation thereof | ||
| Julian Teichmann, Frankfurt am Main (DE); Matthias Wagner, Maintal/Doernigheim (DE); and Hans-Wolfram Lerner, Oberursel (DE) | ||
| Assigned to Evonik Operations GmbH, Essen (DE) | ||
| Filed by Evonik Operations GmbH, Essen (DE) | ||
| Filed on Sep. 20, 2022, as Appl. No. 17/933,492. | ||
| Application 17/933,492 is a division of application No. 17/308,590, filed on May 5, 2021, granted, now 11,555,045, issued on Jan. 17, 2023. | ||
| Application 17/308,590 is a division of application No. 16/774,682, filed on Jan. 28, 2020, granted, now 11,053,263, issued on Jul. 6, 2021. | ||
| Application 16/774,682 is a continuation of application No. 15/994,304, filed on May 31, 2018, granted, now 10,618,921, issued on Apr. 14, 2020. | ||
| Claims priority of application No. 17173959 (EP), filed on Jun. 1, 2017. | ||
| Prior Publication US 2023/0048977 A1, Feb. 16, 2023 | ||
| Int. Cl. C07F 7/30 (2006.01); C07F 7/02 (2006.01); C07F 19/00 (2006.01) | ||
| CPC C07F 7/30 (2013.01) [C07F 7/025 (2013.01); C07F 19/005 (2013.01)] | 1 Claim |
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1. A method for preparing a tris(trichlorosilyl)germanide adduct of BBr3 of formula (IV):
 the method comprising:
mixing tris(trichlorosilyl)germanide of formula (II):
 wherein R = Ph,
with BBr3, to obtain a mixture;
dissolving the resulting mixture in dichloromethane with stirring; and
obtaining the tris(trichlorosilyl)germanide adduct at a temperature of 5 to 40° C. over a period of 1 to 120 hours.
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