Cas 98203-48-6,(3S,6S,7aR)-6-Benzyl-6-ethyl-3-isopropyl-7a-methyl-tetrahydro-pyrrolo[2,1-b]oxazol-5-one

98203-48-6

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Basic information

Product Name: (3S,6S,7aR)-6-Benzyl-6-ethyl-3-isopropyl-7a-methyl-tetrahydro-pyrrolo[2,1-b]oxazol-5-one
Synonyms:
CAS NO:98203-48-6
Molecular Formula:
Molecular Weight: 301.429
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: (3S,6S,7aR)-6-Benzyl-6-ethyl-3-isopropyl-7a-methyl-tetrahydro-pyrrolo[2,1-b]oxazol-5-one(CAS DataBase Reference)
NIST Chemistry Reference: (3S,6S,7aR)-6-Benzyl-6-ethyl-3-isopropyl-7a-methyl-tetrahydro-pyrrolo[2,1-b]oxazol-5-one(98203-48-6)
EPA Substance Registry System: (3S,6S,7aR)-6-Benzyl-6-ethyl-3-isopropyl-7a-methyl-tetrahydro-pyrrolo[2,1-b]oxazol-5-one(98203-48-6)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 98203-48-6(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 98203-48-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,2,0 and 3 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 98203-48:
(7*9)+(6*8)+(5*2)+(4*0)+(3*3)+(2*4)+(1*8)=146
146 % 10 = 6
So 98203-48-6 is a valid CAS Registry Number.

98203-48-6Upstream product

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98203-48-6Relevant academic research and scientific papers

CHIRAL QUATERNARY CARBON COMPOUNDS. II. AN ASYMMETRIC SYNTHESIS OF (R) OR (S)-4,4-DIALKYL-2-CYCLOPENTENONES.

Meyers, A. I.,Wanner, Klaus Th.

, p. 2047 - 2050 (1985)

The chiral bicyclic lactam (5) derived from levulinic acid and (S)-valinol is sequentially alkylated and then cleaved to 2,2-dialkyl levulinaldehyde (8) which is cyclized to the title products (9) in > 99percent ee.

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