Boratocarbyne complexes: Li[Mo{≡CB(OMe) 3}(CO) 2{HB(pzMe 2) 3}] and [K(18-crown-6)] [Mo(≡CBF 2OMe)(CO) 2{HB(pzMe 2) 3}] (pz = pyrazol-1-yl)

Anthony F. Hill; Rong Shang

doi:10.1021/om300238m

Boratocarbyne complexes: Li[Mo{≡CB(OMe) ₃}(CO) ₂{HB(pzMe ₂) ₃}] and [K(18-crown-6)] [Mo(≡CBF ₂OMe)(CO) ₂{HB(pzMe ₂) ₃}] (pz = pyrazol-1-yl)

Anthony F. Hill^*, Rong Shang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

The successive treatment of [Mo(≡CBr)(CO) ₂{HB(pzMe ₂) ₃}] (1; pz = pyrazol-1-yl) with ⁿBuLi and B(OR) ₃ (R = Me, ⁱPr) affords, via the lithiocarbyne complex [Mo(≡CLi)(CO) ₂{HB(pzMe ₂) ₃}] (2), the boratocarbynes Li[Mo{≡CB(OMe) ₃}(CO) ₂{HB(pzMe ₂) ₃}] (R = Me, Li[3a]; R = ⁱPr, Li[3b]). The salt Li[3b] readily eliminates LiO ⁱPr to afford the neutral boryl carbyne [Mo{≡CB(O ⁱPr) ₂}(CO) ₂{HB(pzMe ₂) ₃}] (4b). The analogous boryl carbyne [Mo{≡CB(OMe) ₂}(CO) ₂{HB(pzMe ₂) ₃}] (4a) on treatment with K[HF ₂] and 18-crown-6 (18C6) provides the structurally characterized difluoro(methoxy)boratocarbyne salt [K(18C6)][Mo(≡CBF ₂OMe)(CO) ₂{HB(pzMe ₂) ₃}] ([K(18C6)][6]).

Original language	English
Pages (from-to)	4635-4638
Number of pages	4
Journal	Organometallics
Volume	31
Issue number	13
DOIs	https://doi.org/10.1021/om300238m
Publication status	Published - 9 Jul 2012

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@article{ff0c825c3edb4be7b3eb3b4d01d52057,

title = "Boratocarbyne complexes: Li[Mo\{≡CB(OMe) 3\}(CO) 2\{HB(pzMe 2) 3\}] and [K(18-crown-6)] [Mo(≡CBF 2OMe)(CO) 2\{HB(pzMe 2) 3\}] (pz = pyrazol-1-yl)",

abstract = "The successive treatment of [Mo(≡CBr)(CO) 2\{HB(pzMe 2) 3\}] (1; pz = pyrazol-1-yl) with nBuLi and B(OR) 3 (R = Me, iPr) affords, via the lithiocarbyne complex [Mo(≡CLi)(CO) 2\{HB(pzMe 2) 3\}] (2), the boratocarbynes Li[Mo\{≡CB(OMe) 3\}(CO) 2\{HB(pzMe 2) 3\}] (R = Me, Li[3a]; R = iPr, Li[3b]). The salt Li[3b] readily eliminates LiO iPr to afford the neutral boryl carbyne [Mo\{≡CB(O iPr) 2\}(CO) 2\{HB(pzMe 2) 3\}] (4b). The analogous boryl carbyne [Mo\{≡CB(OMe) 2\}(CO) 2\{HB(pzMe 2) 3\}] (4a) on treatment with K[HF 2] and 18-crown-6 (18C6) provides the structurally characterized difluoro(methoxy)boratocarbyne salt [K(18C6)][Mo(≡CBF 2OMe)(CO) 2\{HB(pzMe 2) 3\}] ([K(18C6)][6]).",

author = "Hill, \{Anthony F.\} and Rong Shang",

year = "2012",

month = jul,

day = "9",

doi = "10.1021/om300238m",

language = "English",

volume = "31",

pages = "4635--4638",

journal = "Organometallics",

issn = "0276-7333",

publisher = "American Chemical Society",

number = "13",

}

TY - JOUR

T1 - Boratocarbyne complexes

T2 - Li[Mo{≡CB(OMe) 3}(CO) 2{HB(pzMe 2) 3}] and [K(18-crown-6)] [Mo(≡CBF 2OMe)(CO) 2{HB(pzMe 2) 3}] (pz = pyrazol-1-yl)

AU - Hill, Anthony F.

AU - Shang, Rong

PY - 2012/7/9

Y1 - 2012/7/9

N2 - The successive treatment of [Mo(≡CBr)(CO) 2{HB(pzMe 2) 3}] (1; pz = pyrazol-1-yl) with nBuLi and B(OR) 3 (R = Me, iPr) affords, via the lithiocarbyne complex [Mo(≡CLi)(CO) 2{HB(pzMe 2) 3}] (2), the boratocarbynes Li[Mo{≡CB(OMe) 3}(CO) 2{HB(pzMe 2) 3}] (R = Me, Li[3a]; R = iPr, Li[3b]). The salt Li[3b] readily eliminates LiO iPr to afford the neutral boryl carbyne [Mo{≡CB(O iPr) 2}(CO) 2{HB(pzMe 2) 3}] (4b). The analogous boryl carbyne [Mo{≡CB(OMe) 2}(CO) 2{HB(pzMe 2) 3}] (4a) on treatment with K[HF 2] and 18-crown-6 (18C6) provides the structurally characterized difluoro(methoxy)boratocarbyne salt [K(18C6)][Mo(≡CBF 2OMe)(CO) 2{HB(pzMe 2) 3}] ([K(18C6)][6]).

AB - The successive treatment of [Mo(≡CBr)(CO) 2{HB(pzMe 2) 3}] (1; pz = pyrazol-1-yl) with nBuLi and B(OR) 3 (R = Me, iPr) affords, via the lithiocarbyne complex [Mo(≡CLi)(CO) 2{HB(pzMe 2) 3}] (2), the boratocarbynes Li[Mo{≡CB(OMe) 3}(CO) 2{HB(pzMe 2) 3}] (R = Me, Li[3a]; R = iPr, Li[3b]). The salt Li[3b] readily eliminates LiO iPr to afford the neutral boryl carbyne [Mo{≡CB(O iPr) 2}(CO) 2{HB(pzMe 2) 3}] (4b). The analogous boryl carbyne [Mo{≡CB(OMe) 2}(CO) 2{HB(pzMe 2) 3}] (4a) on treatment with K[HF 2] and 18-crown-6 (18C6) provides the structurally characterized difluoro(methoxy)boratocarbyne salt [K(18C6)][Mo(≡CBF 2OMe)(CO) 2{HB(pzMe 2) 3}] ([K(18C6)][6]).

UR - https://www.scopus.com/pages/publications/84863701285

U2 - 10.1021/om300238m

DO - 10.1021/om300238m

M3 - Article

SN - 0276-7333

VL - 31

SP - 4635

EP - 4638

JO - Organometallics

JF - Organometallics

IS - 13

ER -

Boratocarbyne complexes: Li[Mo{≡CB(OMe) ₃}(CO) ₂{HB(pzMe ₂) ₃}] and [K(18-crown-6)] [Mo(≡CBF ₂OMe)(CO) ₂{HB(pzMe ₂) ₃}] (pz = pyrazol-1-yl)

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