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5-Mercaptotetrazolyl-derived metallaboratranes
The reactions of 1- tert butyl-5-thiotetrazole (Htt t Bu ) with Na[BH 4 ] provides Na[H 2 B(tt t Bu ) 2 ] (Na[ 1 ]) or Na[HB(tt t Bu ) 3 ] (Na[ 2 ]) in refluxing THF or xylene, respectively. Treating [RuCl(Ph)(CO)(PPh 3 ) 2 ] with Na[ 2 ] affords the triply-buttressed ruthenaboratrane [Ru(CO)(PPh 3...
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| Published in: | Dalton transactions : an international journal of inorganic chemistry 2019-02, Vol.48 (7), p.2367-2376 |
|---|---|
| Main Authors: | , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Citations: | Items that this one cites Items that cite this one |
| Online Access: | Get full text |
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| Summary: | The reactions of 1-
tert
butyl-5-thiotetrazole (Htt
t
Bu
) with Na[BH
4
] provides Na[H
2
B(tt
t
Bu
)
2
] (Na[
1
]) or Na[HB(tt
t
Bu
)
3
] (Na[
2
]) in refluxing THF or xylene, respectively. Treating [RuCl(Ph)(CO)(PPh
3
)
2
] with Na[
2
] affords the triply-buttressed ruthenaboratrane [Ru(CO)(PPh
3
){κ
4
-
B
,
S
,
S
′,
S
′′-B(tt
t
Bu
)
3
}] (
5
) whilst Na[
1
] with [IrCl(CO)(PPh
3
)
2
] or [RuCl(Ph)(CO)(PPh
3
)
2
] provides rare examples of doubly-buttressed metallaboratranes [IrH(CO)(PPh
3
){κ
3
-
B
,
S
,
S
′-BH(tt
t
Bu
)
2
}] (
7
) and [Ru(CO)(PPh
3
)
2
{κ
3
-
B
,
S
,
S
′-BH(tt
t
Bu
)
2
}] (
12
), the latter
via
the isolable thiotetrazoylborate complex [Ru(Ph)(CO)(PPh
3
){κ
3
-
H
,
S
,
S
′-H
2
B(tt
t
Bu
)
2
}] (
11
).
The salts Na[H
2
B(tt
t
Bu
)
2
] and Na[HB(tt
t
Bu
)
3
] (tt
t
Bu
= 1-tert.butyl-5-thiotetrazole have been used to provide the new metallaboratranes [Ru(CO)(PPh
3
){κ
4
-
B
,
S
,
S
′,
S
′′-B(tt
t
Bu
)
3
}], [IrH(CO)(PPh
3
){κ
3
-
B
,
S
,
S
′-BH(tt
t
Bu
)
2
}] and [Ru(CO)(PPh
3
)
2
{κ
3
-
B
,
S
,
S
′-BH(tt
t
Bu
)
2
}]. |
|---|---|
| ISSN: | 1477-9226 1477-9234 |
| DOI: | 10.1039/c8dt05036h |