scholarly journals Stereocontrolled addition of Grignard reagents to oxa-bridged benzazepines: highly efficient synthesis of functionalized benzazepine scaffolds

RSC Advances ◽  
2020 ◽  
Vol 10 (68) ◽  
pp. 41802-41806
Author(s):  
Yuewei Zhang ◽  
Qingqing Bao ◽  
Ning Zhang ◽  
Shuohang Wang ◽  
Xue Yu
Keyword(s):  
Grignard Reagents ◽  
Diastereoselective Synthesis ◽  
Efficient Synthesis ◽  
Highly Efficient

An efficient and highly diastereoselective synthesis of 2-substituted benzo[b]azepin-5-ol via stereocontrolled addition of Grignard reagents to oxa-bridged benzazepines has been developed.

Copper-Catalyzed Base-Controlled Diastereoselective Synthesis of Tetraarylethanes from 2-Benzylpyridines

Synthesis ◽  
2017 ◽  
Vol 50 (06) ◽  
pp. 1275-1283 ◽  
Author(s):  
Govindasamy Sekar ◽  
Selvaraj Chandrasekar ◽  
Iyyanar Karthikeyan
Keyword(s):  
Grignard Reagents ◽  
Diastereoselective Synthesis ◽  
Highly Efficient

A highly efficient and base-controlled diastereoselective synthesis of tetraarylethanes through copper-catalyzed dehydrogenative homocoupling of readily available 2-benzylpyridines is reported. Various dl- and meso-tetraarylethanes were diastereoseletively synthesized by this new protocol, where base plays the role of the principle modulator: Grignard reagents selectively provide the C2 isomers, whereas KOt-Bu promotes the formation of the meso-tetraarylethanes. Interestingly, the presence of excess KOt-Bu generates the (E)-tetraarylethenes as the only product.

scholarly journals Highly efficient synthesis of chiral quaternary 3-aminooxindoles promoted by zinc(ii) chloride via Et2Zn-catalysed addition of Grignard reagents to isaltin-derived N-tert-butanesulfinyl ketimines

RSC Advances ◽  
2017 ◽  
Vol 7 (61) ◽  
pp. 38216-38219
Author(s):  
Shiwei Yang ◽  
Guangling Bian ◽  
Zhongxiang Chen ◽  
Xiaohan Xia ◽  
Mi Zhou ◽  
...  
Keyword(s):  
Grignard Reagents ◽  
Efficient Synthesis ◽  
Highly Efficient ◽  
Diastereoselective Addition

An approach to chiral quaternary 3-aminooxindoles via Et2Zn catalyzed diastereoselective addition of various Grignard reagents to broad isaltin-derived N-tert-butanesulfinyl ketimines promoted by zinc(ii) chloride.

Highly efficient synthesis of methyl ethyl ketone oxime through ammoximation over Ti-MOR catalyst

2014 ◽  
Vol 34 (1) ◽  
pp. 243-250
Author(s):  
Jianghong DING ◽  
Le XU ◽  
Hao XU ◽  
Haihong WU ◽  
Yueming LIU ◽  
...  
Keyword(s):  
Methyl Ethyl Ketone ◽  
Methyl Ethyl ◽  
Efficient Synthesis ◽  
Highly Efficient

Advanced Heterocyclic Branched Semiconducting Units - Highly Efficient Synthesis and Physicochemical Characteristic

2013 ◽  
Vol 17 (3) ◽  
pp. 283-295 ◽  
Author(s):  
Jadwiga Soloducho ◽  
Joanna Cabaj ◽  
Kamila Olech ◽  
Przemyslaw Data ◽  
Mieczyslaw Lapkowski
Keyword(s):  
Physicochemical Characteristic ◽  
Efficient Synthesis ◽  
Highly Efficient

Highly Efficient Synthesis of Clean Biofuels from Biomass Using FeCuZnAlK Catalyst

2011 ◽  
Vol 24 (6) ◽  
pp. 745-752 ◽  
Author(s):  
Song-bai Qiu ◽  
Yong Xu ◽  
Tong-qi Ye ◽  
Fei-yan Gong ◽  
Zhi Yang ◽  
...  
Keyword(s):  
Efficient Synthesis ◽  
Highly Efficient

scholarly journals Microwave-assisted Efficient Synthesis of Alliodorin and (±)-Curcuhydroquinone

1999 ◽  
Vol 23 (2) ◽  
pp. 164-165
Author(s):  
Goverdhan L. Kad ◽  
Anupam Khurana ◽  
Vasundhara Singh ◽  
Jasvinder Singh
Keyword(s):  
Grignard Reagents ◽  
Methyl Groups ◽  
Efficient Synthesis ◽  
Alkyl Aryl ◽  
Microwave Assisted ◽  
Aryl Bromides ◽  
Key Steps

Terpenoids 1 and 2 have been synthesized from readily available starting materials using Li2CuCI4-catalysed coupling of Grignard reagents with alkyl/aryl bromides and microwave-assisted oxidation of allylic methyl groups, using SeO2/ButOOH adsorbed over SiO2 as key steps.

Sustainable production of γ-valerolactone and δ-valerolactone through the coupling of hydrogenation and dehydrogenation

2021 ◽  
Author(s):  
Hongxing Wang ◽  
Guoqiang Ding ◽  
Xianqing Li ◽  
Haohao She ◽  
Yulei Zhu ◽  
...  
Keyword(s):  
Sustainable Production ◽  
Efficient Synthesis ◽  
Highly Efficient ◽  
Catalytic Processes ◽  
Lignocellulose Biomass

γ-valerolactone (GVL) and δ-valerolactone (DVL) are valuable chemicals that can be obtained by catalytic processes from nonedible lignocellulose biomass. However, highly efficient synthesis of GVL and DVL in an environmentally...

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