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Verkade Base in FLP Chemistry–From Stoichiometric C–H Bond Cleavage to the Catalytic Dimerization of Alkynes
Organometallics ( IF 2.5 ) Pub Date : 2020-08-28 , DOI: 10.1021/acs.organomet.0c00411
Amandeep Brar 1 , Suresh Mummadi 1 , Daniel K. Unruh 1 , Clemens Krempner 1
Affiliation  

Stoichiometric and catalytic reactions of terminal alkynes with various FLPs and Lewis acid–base adducts have been investigated. Reactions of phenylacetylene with FLPs composed of the Verkade base N[CH2CH2NPri]3P (1) and the Lewis acids BPh3, 9-hexyl-BBN, and 9-BBN gave [N(CH2CH2NPri)3PH][PhC≡C-BPh3] (2), [N(CH2CH2NPri)3PH][9-hexyl-9-PhC≡C-BBN] (3), and [N(CH2CH2NPri)3PH][9-PhCH═CH-9-PhC≡C-BBN] (4). The binuclear Lewis acid–base adduct (C6F5)3Al–N[CH2CH2NPri]3P–Al(C6F5)3 (6) effectively catalyzed the dimerization of terminal alkynes to gem-1,3-enynes.

中文翻译:

FLP化学中的Verkade碱-从化学计量的CH键断裂到炔烃的催化二聚

已经研究了末端炔烃与各种FLP和Lewis酸碱加合物的化学计量和催化反应。通过一串FLP苯乙炔的反应中Verkade基组成的N [CH 2 CH 2 NPR] 3 P(1)和路易斯酸BPH 3,9-己基-BBN,和9-BBN,得到[N(CH 2 CH 2 NPR3 PH] [PhC≡C-BPH 3 ](2),[N(CH 2 CH 2 NPR3 PH] [9己基-9-PhC≡C-BBN](3),和[N (CH 2 CH 2NPr i3 PH] [9-PhCH═CH-9-PhC≡C-BBN](4)。双核路易斯酸碱加合物(C 6 F 53 Al–N [CH 2 CH 2 NPr i ] 3 P–Al(C 6 F 536)有效催化末端炔烃二聚为宝石-1 ,3-烯炔。
更新日期:2020-08-28
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