Facile Synthesis of 1,4-Benzodiazepin-5-one Derivatives via Intramolecular Aza-Wittig Reaction. Application to an Efficient Synthesis of O-Benzyl DC-81

1995 ◽  
Vol 60 (13) ◽  
pp. 4006-4012 ◽  
Author(s):  
Shoji Eguchi ◽  
Keizo Yamashita ◽  
Yuji Matsushita ◽  
Akikazu Kakehi
2018 ◽  
Vol 54 (25) ◽  
pp. 3166-3169 ◽  
Author(s):  
Teemu Niemi ◽  
Israel Fernández ◽  
Bethany Steadman ◽  
Jere K. Mannisto ◽  
Timo Repo

Selective, straightforward, and efficient synthesis of cyclic carbamates from CO2 and amino alcohols.


2020 ◽  
Vol 18 (22) ◽  
pp. 4231-4237
Author(s):  
Indrani Banerjee ◽  
Shweta Sagar ◽  
Tarun K. Panda

An efficient one-step methodology for the facile synthesis of N-arylamidines from organic nitriles and amines by using calcium bis(hexamethyldisilazide) as a competent catalyst under solvent-free conditions is reported.


2009 ◽  
Vol 56 (1) ◽  
pp. 47-50 ◽  
Author(s):  
Li-Qiang Wu ◽  
Chun-Guang Yang ◽  
Li-Ming Yang ◽  
Li-Juan Yang

ChemInform ◽  
2010 ◽  
Vol 31 (33) ◽  
pp. no-no
Author(s):  
Ming-Wu Ding ◽  
Gui-Ping Zeng ◽  
Tian-Jie Wu

Synlett ◽  
2018 ◽  
Vol 29 (20) ◽  
pp. 2608-2622 ◽  
Author(s):  
Wenwei Lin ◽  
Praneeth Karanam ◽  
Ganapuram Reddy

In this account, our group’s efforts towards exploring new substrates as precursors for the Wittig reaction have been discussed. Several new strategies developed by our group for the generation of requisite ylides for the Wittig reaction are highlighted. The idea behind the development of some chemoselective and diversity-oriented strategies are discussed in detail in a progressive manner. These strategies encompass a wide range of substrates that are employed for the synthesis of an array of heterocycles and multifunctional olefins and present a huge scope for their application on an industrial level.1 Introduction2 Development of New Methods to Effect Intramolecular Wittig Reaction3 Development of a Catalytic Wittig Reaction4 New Synthesis of Bis-Heteroarenes5 Direct β-Acylation of 2-Arylidene-1,3-indandiones6 Doubly Chemoselective Protocol for the Diversity-Oriented Synthesis of Coumarin Derivatives7 Conclusion


2020 ◽  
Vol 85 (22) ◽  
pp. 14684-14696
Author(s):  
Yuki Yamamoto ◽  
Shin-ichi Kawaguchi ◽  
Misaki Nishimura ◽  
Yuki Sato ◽  
Yoshihisa Shimada ◽  
...  

2013 ◽  
Vol 8 (8) ◽  
pp. 1934578X1300800
Author(s):  
Dandan Xu ◽  
Ying Nie ◽  
Xizhou Liang ◽  
Ling Ji ◽  
Songyuan Hu ◽  
...  

The concise, efficient synthesis of α-mangostin is described in eight simple steps with 8.3% overall yield. Highlights include a practical approach to construct the isopentene groups and other diverse groups at C–2 and C–8 of the xanthene skeleton through Claisen rearrangement and Wittig reaction. Meanwhile the first total synthesis of β-mangostin is presented with a similar approach.


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