123068-35-9 Usage
Definition
ChEBI: A cyclic dicarboxylic anhydride that is 5,6,7,8,9,10-hexahydro-1H-cyclonona[c]furan-1,3(4H)-dione substituted by an ethylidene group at position 9, hydroxy groups at position 5 and 8, a propyl group at pos
tion 4 and an oxo group at position 6.
Check Digit Verification of cas no
The CAS Registry Mumber 123068-35-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,0,6 and 8 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 123068-35:
(8*1)+(7*2)+(6*3)+(5*0)+(4*6)+(3*8)+(2*3)+(1*5)=99
99 % 10 = 9
So 123068-35-9 is a valid CAS Registry Number.
InChI:InChI=1/C16H20O6/c1-3-5-9-13-10(15(20)22-16(13)21)6-8(4-2)11(17)7-12(18)14(9)19/h4,9,11,14,17,19H,3,5-7H2,1-2H3/b8-4+/t9-,11-,14-/m1/s1
123068-35-9Relevant articles and documents
Total Synthesis of (+)-Cornexistin
Barber, David M.,Magauer, Thomas,Steinborn, Christian,Wildermuth, Raphael E.
supporting information, p. 17282 - 17285 (2020/08/21)
Herein, we describe the first total synthesis of (+)-cornexistin as well as its 8-epi-isomer starting from malic acid. The robust and scalable route features a Nozaki–Hiyama–Kishi reaction, an auxiliary-controlled syn-Evans-aldol reaction, and a highly efficient intramolecular alkylation to form the nine-membered carbocycle. The delicate maleic anhydride moiety of the nonadride skeleton was constructed from a β-keto nitrile. The developed route enabled the synthesis of 165 mg (+)-cornexistin.
