| 摘要 |
Claimed is a method for making an organofunctional compound of formula RbMcXd comprising the following steps: (i) contacting a transition metal catalyst with a mixture including hydrogen gas and a halide of formula MXa to form a M-containing transition metal catalyst; (ii) contacting the M-containing transition metal catalyst with an organohalide to form the organofunctional compound of formula R McXd. In the above formulae, M is an element selected from antimony, arsenic, bismuth, boron, cadmium, gallium, germanium, indium, lead, mercury, phosphorus, selenium, sulfur, tellurium, and tin. X is a halogen atom or a hydrogen atom. Subscripts have values matching the valences. R is a monovalent organic group. Examples of species of the organofunctional compound prepared according to the method described above include dimethyldichlorogermane (i.e., (CH3)2GeCl2), dimethyldibromogermane, dimethyldiiodogermane, dimethyldifluorogermane, diethyldichlorogermane, diethyldibromogermane, diethyldiiodogermane, dicyclohexyldichlorogermane, and dicyclohexyldibromogermane. The process may also produce other organofunctional compounds, such as those having the formulae ReHGeX3−e, RGeX3, and/or R3GeX, where R and X are as defined above and subscript e is 1 or 2. The method may also produce hydrohalogermanium compounds (i.e., hydrohalogermanes), such as those having the formula HGeX3, where X is as defined above. |
| 主权项 |
1. A method comprises steps (i) and (ii), where:
step (i) is contacting a transition metal catalyst with a mixture comprising hydrogen gas and a halide of formula MXa, where M is an element selected from the group consisting of antimony, arsenic, bismuth, boron, cadmium, gallium, germanium, indium, lead, mercury, phosphorus, selenium, sulfur, tellurium, and tin; each X is independently a halogen atom or hydrogen atom, with the proviso that at least one X is a halogen atom, and subscript a has a value matching valence of M; at a temperature ranging from 200° C. to 1400° C. to form a M-containing transition metal catalyst comprising at least 0.1% of M; and step (ii) is contacting the M-containing transition metal catalyst with an organohalide of formula RX, at a temperature ranging from 100° C. to 600° C. to form at least one organofunctional compound of formula RbMcXd, where M and X are as described above, each R is independently a monovalent organic group, subscript b is 1 or more, subscript c is 1 or more, subscript d is 0 or more and a quantity (b+d) has a value matching valence of Mc. |
