14064-13-2Relevant articles and documents
Preparation of isoquinazolines: Via metal-free [4 + 2] cycloaddition of ynamides with nitriles
Wu, Hao,Liu, Yu,He, Ming-Xing,Wen, Hao,Cao, Wei,Chen, Ping,Tang, Yu
, p. 8408 - 8416 (2019/09/30)
TfOH-mediated [4 + 2] cycloaddition of ynamides with nitriles to construct 1,2-dihydroquinazolines is realized by a direct reaction in moderate to excellent yields (up to 93%) in a stereospecific manner. A rapid and efficient strategy has been employed for the syntheses of alkyl-substituted 1,2-dihydroquinazoline derivatives, and it exhibits good functional group tolerance, has a short reaction time, shows excellent diastereoselectivity, and is a simple and high-yielding reaction.
Hemilabile Benzyl Ether Enables γ-C(sp3)-H Carbonylation and Olefination of Alcohols
Tanaka, Keita,Ewing, William R.,Yu, Jin-Quan
supporting information, (2019/10/22)
Pd-catalyzed C(sp3)-H activation of alcohol typically shows β-selectivity due to the required distance between the chelating atom in the attached directing group and the targeted C-H bonds. Herein we report the design of a hemilabile directing group which exploits the chelation of a readily removable benzyl ether moiety to direct γ- or δ-C-H carbonylation and olefination of alcohols. The utility of this approach is also demonstrated in the late-stage C-H functionalization of β-estradiol to rapidly prepare desired analogues that required multi-step syntheses with classical methods.
CYCLOALKYL METHOXYBENZYL PHENYL PYRAN DERIVATIVES AS SODIUM DEPENDENT GLUCOSE CO TRANSPORTER (SGLT2) INHIBITORS
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, (2012/03/26)
The invention relates to the cycloalkyl methoxybenzyl phenyl pyran derivatives as Sodium dependent glucose co transporter (SGLT) inhibitors, particularly SGLT2 and method of treating diseases, conditions and/or disorders inhibited by SGLT2 with them, and processes for preparing them.