scholarly journals Donor–acceptor-stabilised germanium analogues of acid chloride, ester, and acyl pyrrole compounds: synthesis and reactivity

2019 ◽  
Vol 10 (16) ◽  
pp. 4402-4411 ◽  
Author(s):  
Mahendra Kumar Sharma ◽  
Soumen Sinhababu ◽  
Pritam Mahawar ◽  
Goutam Mukherjee ◽  
Bhawana Pandey ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Acid Chloride ◽  
Donor Acceptor

Hitherto unknown germaacid chloride (1), germaester (2), and Ngermaacyl pyrrole (3) compounds are stabilised as Lewis acid complexes. Reactivity studies on them yielded compounds such as germaynone (4) and germaacyl thioester (10).

scholarly journals Lewis‐Acid‐Catalyzed (3+2)‐Cycloadditions of Donor‐Acceptor Cyclopropanes with Thioketenes

2021 ◽  
Author(s):  
Grzegorz Mlostoń ◽  
Mateusz Kowalczyk ◽  
André U. Augustin ◽  
Peter G. Jones ◽  
Daniel B. Werz
Keyword(s):  
Lewis Acid ◽  
Donor Acceptor ◽  
Acid Catalyzed

Scope and Mechanism for Lewis Acid-Catalyzed Cycloadditions of Aldehydes and Donor−Acceptor Cyclopropanes: Evidence for a Stereospecific Intimate Ion Pair Pathway

2008 ◽  
Vol 130 (27) ◽  
pp. 8642-8650 ◽  
Author(s):  
Patrick D. Pohlhaus ◽  
Shanina D. Sanders ◽  
Andrew T. Parsons ◽  
Wei Li ◽  
Jeffrey S. Johnson
Keyword(s):  
Lewis Acid ◽  
Ion Pair ◽  
Donor Acceptor ◽  
Acid Catalyzed

Synthese und Eigenschaften von Dimethylsulfan-Halogenboranen, (CH3)2SBHnX3-n / Synthesis and Properties of Dimethylsulfane-haloboranes, (CH3)2SBHnX3-n

1975 ◽  
Vol 30 (1-2) ◽  
pp. 55-59 ◽  
Author(s):  
Klemens Kinberger ◽  
Walter Siebert
Keyword(s):  
Lewis Acid ◽  
Boron Compounds ◽  
H Nmr ◽  
Donor Acceptor ◽  
Bond Strengths

Dimethylsulfane-borane, (CH3)2SBH3, reacts with X2, HX and BX3 to give (CH3)2SBH2X and (CH3)2SBHX2 (X = Br, I). Although BI3 is the strongest Lewis-acid amongst the boron compounds, it does not form (CH3)2SBI3 but (CH3)2SBHI2 and B2H6, when it is mixed with (CH3)2SBH3. 1H—NMR results indicate an increase in the donor-acceptor bond strengths with decreasing n in the series (CH3)2SBHnX3-n.

Efficient Synthesis of Diarylmethylamines via Lewis Acid Catalyzed Friedel–Crafts Reactions of Donor–Acceptor Aziridines with N,N-Dialkylanilines

Synthesis ◽  
2019 ◽  
Vol 52 (02) ◽  
pp. 281-289
Author(s):  
Yerin Kim ◽  
Yong Il Kwon ◽  
Sung-Gon Kim
Keyword(s):  
Lewis Acid ◽  
Efficient Synthesis ◽  
Broad Scope ◽  
Donor Acceptor ◽  
Acid Catalyzed ◽  
High Yields

A method for efficient and mild synthesis of diarylmethylamine scaffold, via Lewis acid catalyzed Friedel–Crafts reaction of donor­–acceptor aziridines with N,N-dialkylanilines to afford a biologically important diarylmethylamine derivatives in high yields (up to 88%), is presented. This reaction is suitable for the synthesis of various diarylmethylamine derivatives and has a broad scope for electron-rich arenes, including dimethoxybenzene.

scholarly journals Lewis Acid Catalyzed Ring-Opening 1,3-Aminothiolation of Donor–Acceptor Cyclopropanes Using Sulfenamides

2020 ◽  
Vol 22 (6) ◽  
pp. 2276-2280 ◽  
Author(s):  
Avishek Guin ◽  
Thukaram Rathod ◽  
Rahul N. Gaykar ◽  
Tony Roy ◽  
Akkattu T. Biju
Keyword(s):  
Lewis Acid ◽  
Ring Opening ◽  
Donor Acceptor ◽  
Acid Catalyzed

Asymmetric synthesis of cyclopentanones through dual Lewis acid-catalysed [3+2]-cycloaddition of donor–acceptor cyclopropanes with ketenes

2019 ◽  
Vol 55 (90) ◽  
pp. 13558-13561 ◽  
Author(s):  
Mukulesh Mondal ◽  
Manashi Panda ◽  
Nicholas W. Davis ◽  
Vickie McKee ◽  
Nessan J. Kerrigan
Keyword(s):  
Asymmetric Synthesis ◽  
Lewis Acid ◽  
Acid System ◽  
Donor Acceptor

A dual Lewis acid system promotes the formal [3+2]-cycloaddition of enantioenriched donor–acceptor cyclopropanes with ketenes to afford cyclopentanones.

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